6小数除法复习训练单3.7.2
小数除法计算题500道(口算300道竖式200道)含答案
小数除法计算题500道(口算300道+竖式200道)含答案一.口算题(共50小题)1.直接写出下面各题的得数.4.8÷0.8=7.5﹣4.5=0.75÷15= 3.5×0.4=10÷0.01=10﹣2.05=0.6×1.5=4÷0.25=1.36+2.87+3.64= 1.8×0.4×0.25=2.直接写出得数.2.1÷0.7=2÷5=1÷0.2=7÷8= 5.3÷0.53=0.1÷0.01=0.25×40= 6.5﹣5.6= 1.26÷0.6=0.54÷6=3.直接写得数30.2÷2=0.01÷0.5=0.72÷8= 4.8÷0.06=6.4+3.6=1÷3=10﹣1.55= 1.25×8=4.口算.0.9÷0.03=7.2﹣2=0.05×2=0.74×11= 0.25×4÷0.25×4= 3.1÷3.1= 1.32+8﹣1.32+8=7.2÷40=6.25﹣0.87+0.13=0.4×2.7×25=5.直接写得数.6.3÷0.3= 1.8×0.5=25.1+4.9= 2.5×0.5×4=6.直接写出得数.6.4÷0.2=0.9﹣0.89= 1.07+8.3= 3.6÷10=100×1.5=8.1+9= 4.5×0.2=11﹣3.9=7.直接写得数.5.6÷0.8=6.82﹣5.2= 2.5×0.04=1﹣0.5+0.5=9.15÷0.3=17.2÷0.86= 1.8÷0.1=12.5×0.8×0= 8.直接写得数1.4×100=2.80÷10= 2.4÷100=0.33×1000=90÷6=0.025×100=90÷100=0.32+1.98=14.3+5.7=9×99+9=9.直接写得数.10÷0.01=0.22+0.8=10﹣2.05=4÷0.25=0÷19.8=0.2×0.05= 1.36+3.64=0.4×0.25=10.直接写得数0.25÷0.5=0.32÷0.04= 1.25×4=1.6÷0.4=0.54÷6= 5.6÷7=11.直接写得数.5.09÷10=12.5×0.8=0.5÷0.25=45.6÷1=32.1×0.2= 0.25×6=0.4×0.5=0.54÷0.9=10.2÷0.01=12.5×0.8= 12.口算4÷5= 1.8÷0.03=75÷2.5=0.2×25.4=3.6+4.4=10﹣5.2= 3.4×0.2=7.8÷6=13.直接写出得数3.6÷0.3= 6.3÷7= 5.6×100=0.25×4=0.56÷28=36÷0.9=0.64+0.8=0.72×3=1.2×20=7÷5= 6.12÷0.5=2.9÷5÷0.2= 14.口算3.4÷2= 2.7÷0.3=0.42÷6=4.12×2=6.3÷0.9= 1.53+2.4= 4.8×0.5= 6.4÷80=40×0.41=30.9×9=10×4.1= 4.6÷0.5=15.直接写得数.0.25÷5=0.72÷0.9= 3.145×100=7.2÷3.6=1÷50=12.4÷4.1=0.01+0.99=7.6÷7.6= 1.25×4=50﹣0÷2.5= 16.直接写得数0.35÷5=0.3×2=0.3÷0.2=0.7×0.9=0÷7÷3= 2.4×5= 4.9×0=2×0.45×5=17.口算我最棒.0.64÷1.6= 1.4×0.5=0.72÷0.9=10.9﹣8.9=2.7+7.2=0÷1.5= 2.7×0.3=24÷0.3=4.3+2.7=200×0.07=0.25×4.9=4÷0.8=18.直接写得数0.8÷10=25+8=187÷1000=0÷58=237﹣9=257+0=0×0.008=0.001×100=6.0805×1000=24×5=19.直接写得数.0.63÷9= 5.4÷1.45=0×4.65= 3.5÷0.7=1÷0.25=4×0.5=0.1÷0.05= 3.3÷0.1= 2.7÷0.90.36÷0.12=0.14÷2=9.6÷6= 20.直接写得数.8.4÷4= 3.6÷0.2=0.72÷90=1.1×0.8=0.56+4.44= 1.25×5×8=2.9+3.7+2.1=7.6×8+2.4×8=0.4×0.25= 21.请你直接写出得数4.8÷0.8=7.5﹣0.45=5.7+3.3=1÷0.25=6.2÷0.62﹣1= 0.75÷1.5=0.2÷4=0.21×4= 1.2×60=5+3.2÷0.8= 22.直接写出得数.0.72÷0.9=23.7+2.63= 4.8÷0.4=0.5÷2=6.5﹣5.6=1÷0.25=8÷0.8=10÷4=0.4×0.8=0.48÷0.8=0.35×4=0.3÷0.15= 23.直接写出得数1.2÷0.4=2÷8=4÷0.5=0.72÷4=0÷5.32= 3.6+1.8=1﹣0.73=0.24÷0.6=6.4÷1.6=0.125×80=0.5×0.8=13.2÷0.6= 24.直接写得数.2.5÷0.5=0.42÷0.6=3.5÷0.01=0.54÷0.6=0.8﹣0.35= 0.25×4=12.5×0.8=0.2×50=0÷3.68=0.3×0.2=25.直接写出得数.0.56÷0.7=0.6+0.65= 3.9÷1.3=12÷0.03=5.2÷0.13=99×1.01=13.5﹣2.8﹣7.2=25×0.32×125= 26.口算3.6÷1.2=8.1÷9=4.8÷0.6= 1.25×8=99÷0.9=25÷0.05=88÷0.008=1÷2.5=27.直接写得数.0.64÷0.32=0.7×1.2=7.2÷(0.8×9)=40×0.25=0÷4.8= 2.9÷2.9=0.3×0.6=0.07×50=100×0.07=22.1×1= 28.口算0.02×0.1=12﹣4.3=36÷0.01=0.8×0.125= 2.3+0.8=0.36÷0.4÷9=29.口算.3.6÷1.2=4.4÷4= 4.8÷0.4=1÷0.25=30.直接写得数.6.4÷8=9.8÷0.14= 4.8÷16=0.63÷9=8.7÷29=0.99÷9.9= 5.5÷0.11=13.8÷6.9=31.直接写出得数.0.56÷8=0.07×10=3﹣1.9=1.2×0.1=51÷0.3= 4.3+15.37=2.9×10.02≈12.1÷3.9≈6÷0.58≈32.直接写出得数.3.6÷3=7.8÷6=9.9÷9=56.7÷7=4.8÷4= 3.9÷13= 3.6÷12=8.1÷27=0.04÷2=0.88÷4= 1.25÷5=7.5÷0.05=33.口算1÷0.25=0.78÷6= 2.4÷24=6.6÷0.6=5÷0.5=34÷0.2=0.8×7=8×0.6=70×0.12=34.直接算出得数.2.1÷2=3.8+1.02=7.5×0.4=2x﹣0.7x=10÷8=0.8×0.6= 3.2×0.5=9.6÷0.06= 3.57÷0.7= 4.5+0.76= 35.直接写出得数.22.4÷4=0.25×4=0.21÷7= 5.6÷7= 1.2×5= 42÷3= 6.12÷0.6=0.54÷6=38.5÷5=24÷0.8= 36.直接写出得数.1.6÷0.4=7.2÷8= 4.2÷0.01=2﹣3.6÷1.8=4÷5= 4.6÷0.46= 5.4÷1.8=0÷21.3=37.口算1.2÷3=0.48÷6= 4.6÷23= 6.8÷4=0.72÷12= 0.72÷4=9.6÷6= 5.2÷13=12.5÷5=0.12÷5= 38.直接写得数.56÷100= 1.29﹣0.29=0.56×100= 5.35+2.5=0.625×100=5﹣2.1=359+402=18.6﹣7=8.07×10= 3.5+0.9= 1.2+0.08=4×(25×14)= 7.34×0= 3.31+1.2=25×4÷25×4=0.25+0.2+0.75= 39.口算0.42÷0.6=5×0.6= 2.4÷0.24= 1.25×2.3×8=7.8+1.2=10÷0.1=0.1×0.1= 2.5﹣2.5×0.4= 40.直接写出得数.10﹣9.9=0.67+0.3=8.9×100= 2.5×4=8÷16=0.9×60= 1.04÷2=9.1÷7=1.5×8=0.39÷39=0.25÷8=0.05×300=0.45÷9=7.2÷9=0×5.8=4×8×0.25=41.口算.2.4÷2=48÷0.6=0.24÷0.2= 4.8÷6=2.4÷0.2= 4.8÷0.6=9.6÷0.3=96÷3=42.直接写出得数16÷5=22÷4=48÷100=12.6÷3= 6.06÷6=35÷70=95÷5= 1.3×4=12.6÷0.6= 1.8÷6=43.直接写的数0.75÷0.5= 1.6÷0.4=7÷3.5=16.8÷0.4= 2.8÷0.28=0.5÷0.25=44.口算下面各题.5.74÷10= 4.2÷0.07=0.16×4=0.4÷0.8= 1.2×5=0.64÷2=0.56÷0.7=0.6+0.65= 3.9÷1.3=45.计算.12.8÷4=31.5÷5=39.6÷4=97.8÷6=11.7÷3=29.4÷2=83.5÷5=95.2÷4=67.8÷2=46.口算:0.96÷8=0.08÷0.01=0.2÷0.05=0.36÷0.18= 5.1÷1.7=0.54÷0.6= 4.8÷0.24=10﹣0.92=0.9÷45= 2.5×4÷2.5×4= 47.直接写出得数.2.5×4=10÷0.1= 2.8÷0.4= 4.5÷0.15=7.2÷0.9=1.5×6=15÷0.5=5÷2= 1.2÷0.03= 1.3×3= 48.直接写出得数.0.3+5.7=1﹣0.6= 3.3+5.6=0.25+5.75=5.3+50.7=0.4﹣0.35=1﹣0.04=8+50.28=0.9﹣0.7=10﹣9.9=8.6×100=148.3÷100=49.直接写出得数.3.6÷1.2=0.72÷0.9= 2.6÷13=4.8÷0.4=4.4÷4=0.78÷6=7.2÷0.4=1÷0.25=7.1×0.4= 4.5÷0.15=1﹣0.07=0.42÷0.7=50.直接写得数0.29÷100=5÷1000=19+0÷19=423﹣(100+23)=170×100=320÷100=90﹣26﹣13=0.56×100÷1000=0.26×1000=24×99+24=38﹣25+12﹣25=500÷100×1000=二.竖式计算(共50小题)1.竖式计算.0.51÷0.5=98÷5.6=20.4÷1.7=验算:2.用竖式计算(★需验算,除不尽的保留两位小数).1.092÷0.42=★210÷1.4=8.9÷0.56≈3.列竖式计算.69.02÷3.4 26.8×0.35 46.8÷3.4(保留一位小数)4.列竖式计算.2.05÷25 0.13÷0.17(商精确到百分位)4.2÷0.28 4.2÷1.32(得数保留三位小数)5.用竖式计算.117.3÷0.46 24×0.37 40.32÷l.68.6.竖式计算2.1÷0.7= 7÷0.35=7.2÷4=7.用竖式计算并验算.2.76×24=12.6÷0.28=8.用竖式计算.220.5÷15=(用乘法验算) 2.64×1.09=(得数保留两位小数)6.3÷0.125=0.84×1.65=9.列竖式计算.(后两题得数保留两位小数)33.6÷568.96÷0.287.12÷0.22 4.13÷14.10.竖式计算.12.4÷4=45.9÷0.6=51÷0.3=52.8÷12=75.6÷0.18=9.6÷0.32=11.用竖式计算13÷2.554.5÷0.160.68÷0.95(保留两位小数)2.05×0.16(验算)78.6÷11=(商用循环小数表示) 6.21÷0.03.12.竖式计算,带*的要验算.1.25÷0.25=78.6÷11=(商用循环小数示)5.63÷7.8≈数保留两位小数) 28.28÷0.4=*0.303÷5=13.列竖式计算(带★的保留两位小数)★1.57÷3.9 ★0.58×0.24 70.7÷33(商用循环小数表示)14.竖式计算(得数保留1位小数)带★的验算★64.8÷1.8≈★8﹣6.69≈0.65×3.84≈15.竖式计算.(带*的要验算)9.4÷11=*144÷12=14.2÷11=16.竖式计算.75.6÷0.1825.6÷0.032 2.78×1.85.63÷6.1(得数保留两位小数)10÷3.3(用循环小数表示)17.竖式计算,按要求保留商的近似值.30÷7 (保留两位小数)60.9÷3.2(保留一位小数)25÷9.9(保留整数)18.用竖式计算(1)6.21÷0.03= (2)10.8÷45=(3)8.54÷0.7= (4)72.9÷0.9=19.竖式计算.(第②、④题验算)①50.96÷6.5 ②9.25÷3.7= ③15÷74 ④6.72÷4.2=20.用竖式计算(1)1.25÷0.25= (2)8.4÷0.56=(3)8.54÷0.7=(验算)(4)78.6÷11=(商用循环小数表示)21.用竖式计算.4.5×0.18= 2.346÷2.3=验算:70.3×3.6=5.06÷2.2=22.用竖式计算(带*得数保留两位小数)2.6×0.25 29.9÷0.46*4.65÷1.3.23.列竖式计算(除不尽的保留两位小数)①24.6÷0.16;②13.9÷6;③0.325÷1.5;④6.24÷0.8;⑤18.3÷4;⑥19.2÷6.24.用竖式计算,并指出哪些是循环小数.7.05÷0.94 1.71÷3.84.83÷0.75.7÷938.2÷2.7 2.16÷181.8÷0.25 3.7÷2.2.25.用竖式计算(1)3.9÷0.26≈(2)9.35÷3.4≈(得数保留一位小数)(3)0.17÷0.11≈(商用循环小数表示)(4)0.168÷0.7≈(5)4.05÷18≈(得数保留两位小数)(6)4.68÷5.4=(商用循环小数表示)26.用竖式计算21.45÷15; 49.04÷8; 217.6÷34;11.7÷36; 1.69÷26; 54.81÷27.27.将下列式子的得数保留两位小数①25.32÷0.15 ②1.03÷1.2③1.07÷9.2④9.45÷0.32 ⑤13.51÷0.13 ⑥17.96÷0.36.28.列竖式计算.(第三小题得数保留两位小数,第五小题请写出验算过程.)47.04÷5.6= 3.28×2.7=0.764×1.2≈52.92÷0.27=8÷1.28=15.36÷12=29.列竖式计算:0.195÷0.13 3.6÷0.8 76.76÷0.766÷2.4 7.085÷0.65 9.72÷0.27.30.竖式计算.(1)0.38×0.23(2)5.79×3.6(3)4.6×0.25(4)6÷24 (5)52.95÷75 (6)3.01÷7 (7)4.95÷11(8)84.01÷31(用乘法验算)(9)0.646÷19(10)4.7×0.59.31.计算下面各题,并用乘法验算(1)15.6÷12 (2)328÷16 (3)1.35÷27(4)0.646÷19.32.用竖式计算下列各题.(除不尽的保留两位小数,后面两道题要验算)45.15÷1.5= 52.65÷1.3= 15.75÷2.1=8.42+0.6=0.436÷0.2=9.25÷3.7=33.列竖式计算6.6÷443.5÷2918.9÷27 1.35÷1537.5÷628.6÷1120.4÷24 3.64÷52.34.竖式计算0.448÷32=14.3+6.7= 3.8×0.26=11.32﹣8.95=35.用竖式计算1.26÷1.8=64×5.04=43.5÷0.29=验算5.63÷6.1(得数保留两位小数)27.8÷2.5=验算9.8×0.75= 36.笔算5.02×4.8= 1.35×320=26÷0.13=48÷2.3≈(得数保留两位小数)37.用竖式计算,加★号的要验算.★0.756÷0.18=0.35×0.48= ★6.02﹣5.94=38.用竖式计算(有★的要验算)96.6÷42 7.79÷95★6.3÷0.427÷0.35 0.14÷0.08 42÷8.39.用竖式计算.7.8÷75= 2.55÷2.5= 2.5×1.04=40.列竖式计算3.5×10.880.93÷26.7(精确十分位) 1.42÷1.1 (商用循环小数表示)41.计算下面各题,除不尽的用循环小数表示商43.8÷12 0.12÷0.25 7÷0.35 11.62÷913÷11 30.1÷33 19÷12 5.6÷0.07.42.竖式计算30.6÷45 4.06÷0.58※54.6÷0.91.43.列竖式计算.0.58×0.08=(结果保留两位小数)0.54÷0.018=13.6÷3=(商用循环小数表示)44.列竖式计算,并验算前两个,第三个保留两位小数.95.2÷28=46.8÷0.13= 5.63÷7.8=45.竖式0.73×2.157.38÷1.6 5.95÷27.6(得数保留两位小数)46.用竖式计算.3.38÷18 30.9×2.7 5.95÷27.6(得数保留两位小数)47.列竖式计算.4.83÷23= 3.09÷1.5=0.14÷0.08=(验算)48.竖式计算.70÷5.6=227.8÷0.34=7.525÷0.38=49.用竖式计算下面各题,除不尽的保留两位小数8.65÷0.25 1.8÷12 7.2÷1.1.50.用竖式计算.7.02×1.3 29.83÷9.5 0.54÷3.6小数除法计算题(口算300道+竖式200道)答案一.口算题(共50小题)1.【解答】解:4.8÷0.8=67.5﹣4.5=30.75÷15=0.05 3.5×0.4=1.4 10÷0.01=100010﹣2.05=7.950.6×1.5=0.94÷0.25=16 1.36+2.87+3.64=7.87 1.8×0.4×0.25=0.182.【解答】解:2.1÷0.7=32÷5=0.41÷0.2=57÷8=0.875 5.3÷0.53=10 0.1÷0.01=100.25×40=10 6.5﹣5.6=0.9 1.26÷0.6=2.10.54÷6=0.09 3.【解答】解30.2÷2=15.10.01÷0.5=0.020.72÷8=0.09 4.8÷0.06=806.4+3.6=101÷3=0.10﹣1.55=8.45 1.25×8=104.【解答】解:0.9÷0.03=307.2﹣2=5.20.05×2=0.10.74×11=8.140.25×4÷0.25×4=16 3.1÷3.1=1 1.32+8﹣1.32+8=167.2÷40=0.186.25﹣0.87+0.13=5.510.4× 2.7×25=275.【解答】解:6.3÷0.3=211.8×0.5=0.925.1+4.9=302.5×0.5×4=56.【解答】解:6.4÷0.2=320.9﹣0.89=0.01 1.07+8.3=9.37 3.6÷10=0.36 100×1.5=1508.1+9=17.1 4.5×0.2=0.911﹣3.9=7.17.【解答】解:5.6÷0.8=76.82﹣5.2=1.62 2.5×0.04=0.11﹣0.5+0.5=1 9.15÷0.3=30.517.2÷0.86=20 1.8÷0.1=1812.5×0.8×0=08.【解答】解:1.4×100=1402.80÷10=0.28 2.4÷100=0.0240.33×1000=330 90÷6=150.025×100=2.590÷100=0.90.32+1.98=2.3 14.3+5.7=209×99+9=9009.【解答】解:10÷0.01=10000.22+0.8=1.0210﹣2.05=7.954÷0.25=160÷19.8=00.2×0.05=0.01 1.36+3.64=50.4×0.25=0.110.【解答】解:0.25÷0.5=0.50.32÷0.04=81.25×4=51.6÷0.4=40.54÷6=0.095.6÷7=0.811.【解答】解:5.09÷10=0.50912.5×0.8=100.5÷0.25=245.6÷1=45.632.1×0.2=6.420.25×6=1.50.4×0.5=0.20.54÷0.9=0.610.2÷0.01=102012.5×0.8=1012.【解答】解:4÷5=0.8 1.8÷0.03=6075÷2.5=300.2×25.4=5.08 3.6+4.4=810﹣5.2=4.8 3.4×0.2=0.687.8÷6=1.33.6÷0.3=12 6.3÷7=0.9 5.6×100=5600.25×4=10.56÷28=0.0236÷0.9=400.64+0.8=1.440.72×3=2.161.2×20=247÷5=1.4 6.12÷0.5=12.24 2.9÷5÷0.2=2.914.【解答】解:3.4÷2=1.7 2.7÷0.3=90.42÷6=0.074.12×2=8.24 6.3÷0.9=7 1.53+2.4=3.93 4.8×0.5=2.4 6.4÷80=0.0840×0.41=16.430.9×9=278.110×4.1=41 4.6÷0.5=9.2 15.【解答】解:0.25÷5=0.050.72÷0.9=0.83.145×100=314.57.2÷3.6=21÷50=0.0212.4÷4.1=30.01+0.99=17.6÷7.6=1 1.25×4=550﹣0÷2.5=5016.【解答】解:0.35÷5=0.070.3×2=0.60.3÷0.2=1.50.7×0.9=0.630÷7÷3=0 2.4×5=1.2 4.9×0=02×0.45×5=4.517.【解答】解:0.64÷1.6=0.4 1.4×0.5=0.70.72÷0.9=0.810.9﹣8.9=22.7+7.2=9.90÷1.5=0 2.7×0.3=0.8124÷0.3=804.3+2.7=7200×0.07=140.25×4.9=1.2254÷0.8=518.【解答】解:0.8÷10=0.825+8=33187÷1000=0.1870÷58=0237﹣9=226257+0=2570×0.008=00.001×100=0.16.0805×1000=6080.524×5=1200.63÷9=0.07 5.4÷1.45≈3.720×4.65=0 3.5÷0.7=5 1÷0.25=44×0.5=20.1÷0.05=2 3.3÷0.1=33 2.7÷0.9=30.36÷0.12=30.14÷2=0.079.6÷6=1.620.【解答】解:8.4÷4=2.1 3.6÷0.2=180.72÷90=0.0081.1×0.8=0.880.56+4.44=5 1.25×5×8=502.9+3.7+2.1=8.77.6×8+2.4×8=800.4×0.25=0.121.【解答】解:4.8÷0.8=67.5﹣0.45=7.055.7+3.3=91÷0.25=4 6.2÷0.62﹣1=90.75÷1.5=0.50.2÷4=0.050.21×4=0.841.2×60=725+3.2÷0.8=922.【解答】解:0.72÷0.9=0.823.7+2.63=26.33 4.8÷0.4=120.5÷2=0.25 6.5﹣5.6=0.91÷0.25=48÷0.8=1010÷4=2.5 0.4×0.8=0.320.48÷0.8=0.60.35×4=1.40.3÷0.15=223.【解答】解:1.2÷0.4=32÷8=0.254÷0.5=80.72÷4=0.180÷5.32=0 3.6+1.8=5.41﹣0.73=0.270.24÷0.6=0.4 6.4÷1.6=40.125×80=100.5×0.8=0.413.2÷0.6=2224.【解答】解:2.5÷0.5=50.42÷0.6=0.73.5÷0.01=3500.54÷0.6=0.90.8﹣0.35=0.450.25×4=112.5×0.8=100.2×50=100÷3.68=00.3×0.2=0.0625.【解答】解:0.56÷0.7=0.80.6+0.65=1.25 3.9÷1.3=312÷0.03=4005.2÷0.13=4099×1.01=99.9913.5﹣2.8﹣7.2=3.525×0.32×125=100026.【解答】解:3.6÷1.2=38.1÷9=0.94.8÷0.6=8 1.25×8=1099÷0.9=11025÷0.05=50088÷0.008=110001÷2.5=0.427.【解答】解:0.64÷0.32=20.7×1.2=0.847.2÷(0.8×9)=140×0.25=100÷4.8=02.9÷2.9=10.3×0.6=0.180.07×50=3.5100×0.07=722.1×1=22.128.【解答】解:0.02×0.1=0.002 12﹣4.3=7.736÷0.01=36000.8×0.125=0.12.3+0.8=3.10.36÷0.4÷9=0.129.【解答】解:3.6÷1.2=34.4÷4=1.14.8÷0.4=121÷0.25=430.【解答】解:6.4÷8=0.89.8÷0.14=70 4.8÷16=0.30.63÷9=0.078.7÷29=0.30.99÷9.9=0.1 5.5÷0.11=5013.8÷6.9=231.【解答】解:0.56÷8=0.070.07×10=0.73﹣1.9=1.11.2×0.1=0.1251÷0.3=170 4.3+15.37=19.672.9×10.02≈3012.1÷3.9≈36÷0.58≈1032.【解答】解:3.6÷3=1.27.8÷6=1.39.9÷9=1.156.7÷7=8.14.8÷4=1.2 3.9÷13=0.3 3.6÷12=0.38.1÷27=0.30.04÷2=0.020.88÷4=0.22 1.25÷5=0.257.5÷0.05=15033.【解答】解:1÷0.25=40.78÷6=0.13 2.4÷24=0.16.6÷0.6=115÷0.5=1034÷0.2=1700.8×7=5.68×0.6=4.870×0.12=8.434.【解答】解:2.1÷2=1.053.8+1.02=4.827.5×0.4=32x﹣0.7x=1.3x10÷8=1.250.8×0.6=0.483.2×0.5=1.69.6÷0.06=1603.57÷0.7=5.14.5+0.76=5.2635.【解答】解:22.4÷4=5.60.25×4=10.21÷7=0.03 5.6÷7=0.8 1.2×5=6 42÷3=14 6.12÷0.6=10.20.54÷6=0.0938.5÷5=7.724÷0.8=3036.【解答】解:1.6÷0.4=47.2÷8=0.9 4.2÷0.01=4202﹣3.6÷1.8=04÷5=0.8 4.6÷0.46=10 5.4÷1.8=30÷21.3=037.【解答】解:1.2÷3=0.40.48÷6=0.08 4.6÷23=0.2 6.8÷4=1.70.72÷12=0.06 0.72÷4=0.189.6÷6=1.6 5.2÷13=0.412.5÷5=2.50.12÷5=0.02438.【解答】解:56÷100=0.56 1.29﹣0.29=10.56×100=56 5.35+2.5=7.850.625×100=62.55﹣2.1=2.9359+402=76118.6﹣7=11.68.07×10=80.7 3.5+0.9=4.4 1.2+0.08=1.284×(25×14)=1400 7.34×0=0 3.31+1.2=4.5125×4÷25×4=160.25+0.2+0.75=1.239.【解答】解:0.42÷0.6=0.75×0.6=3 2.4÷0.24=10 1.25×2.3×8=237.8+1.2=910÷0.1=1000.1×0.1=0.01 2.5﹣2.5×0.4=1.540.【解答】解:10﹣9.9=0.10.67+0.3=0.978.9×100=890 2.5×4=108÷16=0.50.9×60=54 1.04÷2=0.529.1÷7=1.31.5×8=120.39÷39=0.010.25÷8=0.031250.05×300=150.45÷9=0.057.2÷9=0.80×5.8=04×8×0.25=841.【解答】解:2.4÷2=1.248÷0.6=800.24÷0.2=1.2 4.8÷6=0.82.4÷0.2=12 4.8÷0.6=89.6÷0.3=3296÷3=3242.【解答】解:16÷5=3.222÷4=5.548÷100=0.4812.6÷3=4.2 6.06÷6=1.0135÷70=0.595÷5=19 1.3×4=5.212.6÷0.6=21 1.8÷6=0.343.【解答】解:0.75÷0.5=1.5 1.6÷0.4=47÷3.5=216.8÷0.4=42 2.8÷0.28=100.5÷0.25=244.【解答】解:5.74÷10=0.574 4.2÷0.07=600.16×4=0.640.4÷0.8=0.5 1.2×5=60.64÷2=0.320.56÷0.7=0.80.6+0.65=1.25 3.9÷1.3=345.【解答】解:(1)12.8÷4=3.2(2)31.5÷5=6.3(3)39.6÷4=9.9(4)97.8÷6=16.3(5)11.7÷3=3.9(6)29.4÷2=14.7(7)83.5÷5=16.7(8)95.2÷4=23.8(9)67.8÷2=33.946.【解答】解:口算:(1)0.96÷8=0.12(2)0.08÷0.01=8(3)0.2÷0.05=4(4)0.36÷0.18=2(5)5.1÷1.7=3(6)0.54÷0.6=0.9(7)4.8÷0.24=20(8)10﹣0.92=0.08(9)0.9÷45=0.02(10)2.5×4÷2.5×4=1647.【解答】解:2.5×4=1010÷0.1=100 2.8÷0.4=7 4.5÷0.15=307.2÷0.9=8 1.5×6=915÷0.5=305÷2=2.5 1.2÷0.03=40 1.3×3=3.948.【解答】解:0.3+5.7=61﹣0.6=0.4 3.3+5.6=8.90.25+5.75=65.3+50.7=560.4﹣0.35=0.051﹣0.04=0.968+50.28=58.28 0.9﹣0.7=0.210﹣9.9=0.18.6×100=860148.3÷100=1.48349.【解答】解:3.6÷1.2=30.72÷0.9=0.8 2.6÷13=0.24.8÷0.4=124.4÷4=1.10.78÷6=0.137.2÷0.4=181÷0.25=47.1×0.4=2.84 4.5÷0.15=301﹣0.07=0.930.42÷0.7=0.650.【解答】解:0.29÷100=0.00295÷1000=0.00519+0÷19=19423﹣(100+23)=300170×100=17000320÷100=3.290﹣26﹣13=510.56×100÷1000=0.0560.26×1000=26024×99+24=240038﹣25+12﹣25=0500÷100×1000=5000二.竖式计算题(共50小题)1.【解答】解:0.51÷0.5=1.0298÷5.6=1520.4÷1.7=122.【解答】解:1.092÷0.42=2.6★210÷1.4=1508.9÷0.56≈15.893.【解答】解:69.02÷3.4=20.3 26.8×0.35=9.3846.8÷3.4≈13.84.【解答】解:2.05÷25=0.0820.13÷0.17≈0.764.2÷0.28=154.2÷1.32≈3.1825.【解答】解:117.3÷0.46=255 24×0.37=8.8840.32÷l.68=246.【解答】解:2.1÷0.7=37÷0.35=207.2÷4=1.87.【解答】解:①2.76×24=66.24②12.6÷0.28=458.【解答】解:220.5÷15=14.72.64×1.09≈2.886.3÷0.125=50.40.84×1.65=1.3869.【解答】解:33.6÷56=0.68.96÷0.28=327.12÷0.22≈3.364.13÷14≈0.3010.【解答】解:(1)12.4÷4=3.1(2)45.9÷0.6=76.5(3)51÷0.3=170(4)52.8÷12=4.4(5)75.6÷0.18=420(6)9.6÷0.32=3011.【解答】解:13÷2.5=5.254.5÷0.16=340.6250.68÷0.95≈0.722.05×0.16=0.32878.6÷11=7.1(商用循环小数表示)6.21÷0.03=20712【解答】解:1.25÷0.25=578.6÷11=7.15.63÷7.8≈0.7228.28÷0.4=70.70.303÷5=0.060613.【解答】解:1.57÷3.9≈0.400.58×0.24≈0.1470.7÷33=2.114.【解答】解:★64.8÷1.8=36★8﹣6.69≈1.3;0.65×3.84≈2.515.【解答】解:9.4÷11=0.8 *144÷12=1214.2÷11=1.216.【解答】解:75.6÷0.18=42025.6÷0.032=8002.78×1.8=5.0045.63÷6.1≈0.9210÷3.3≈3.17.【解答】解:30÷7≈4.2960.9÷3.2≈19.025÷9.9≈318.【解答】解:(1)6.21÷0.03=207(2)10.8÷45=0.24(3)8.54÷0.7=12.2(4)72.9÷0.9=8119.【解答】解:①50.96÷6.5=7.84②9.25÷3.7=2.5③15÷74=0.22 ④6.72÷4.2=1.620.【解答】解:(1)1.25÷0.25=5(2)8.4÷0.56=15(3)8.54÷0.7=12.2(4)78.6÷11=7.121.【解答】解:4.5×0.18=0.812.346÷2.3=1.0270.3×3.6=253.085.06÷2.2=2.322.【解答】解:2.6×0.25=0.6529.9÷0.46=65*4.65÷1.3≈3.5823.【解答】解:①24.6÷0.16=153.75②13.9÷6≈2.32③0.325÷1.5≈0.22④6.24÷0.8=7.8⑤18.3÷4=4.575⑥19.2÷6=3.224.【解答】解:7.05÷0.94=7.51.71÷3.8=0.454.83÷O.7=6.95.7÷9=0.638.2÷2.7=14.42.16÷18=0.121.8÷0.25=7.23.7÷2.2=1.625.【解答】解:(1)3.9÷0.26=15(2)9.35÷3.4≈2.8(3)0.17÷0.11≈1.(4)0.168÷0.7=0.24(5)4.05÷18≈0.23(6)4.68÷5.4≈26.【解答】解:21.45÷15=1.4349.04÷8=6.13217.6÷34=6.411.7÷36=0.3251.69÷26=0.6554.81÷27=2.0327.【解答】解:①25.32÷0.15=168.80②1.03÷1.2≈0.86③1.07÷9.2≈0.12④9.45÷0.32≈29.53⑤13.51÷0.13≈103.92⑥17.96÷0.36≈49.8928.【解答】解:47.04÷5.6=8.43.28×2.7=8.8560.764×1.2≈0.9252.92÷0.27=1968÷1.28=6.2515.36÷12=1.2829.【解答】解:0.195÷0.13=1.53.6÷0.8=4.576.76÷0.76=1016÷2.4=2.5 7.085÷0.65=10.99.72÷0.27=3630.【解答】解:(1)0.38×0.23=0.0874(2)5.79×3.6=20.844(3)4.6×0.25=1.15(4)6÷24=0.25(5)52.95÷75=0.706(6)3.01÷7=0.43(7)4.95÷11=0.45(8)84.01÷31=2.71(9)0.646÷19=0.034(10)4.7×0.59=2.77331.【解答】解:(1)15.6÷12=1.3(2)328÷16=20.5(3)1.35÷27=0.05(4)0.646÷19=0.03432.【解答】解:45.15÷15=3.0552.65÷13=4.0515.75÷2.1=7.58.42÷0.6≈14.030.436÷0.2=2.189.25÷3.7=2.533.【解答】解:6.6÷4=1.6543.5÷29=1.518.9÷27=0.71.35÷15=0.0937.5÷6=6.2528.6÷11=2.620.4÷24=0.853.64÷52=0.0734.【解答】解:0.448÷32=0.01414.3+6.7=213.8×0.26=0.98811.32﹣8.95=2.3735.【解答】解:(1)1.26÷1.8=0.7(2)64×5.04=322.56 (3)43.5÷0.29=150(4)5.63÷0.13≈43.31(5)27.8÷2.5=11.12(6)9.8×0.75=7.3536.【解答】解:5.02×4.8=24.0961.35×320=43226÷0.13=20048÷2.3≈20.8737.【解答】解:★0.756÷0.18═4.20.35×0.48=0.168★6.02﹣5.94=0.0838.【解答】解:96.6÷42=2.37.79÷95=0.082;★6.3÷0.42=157÷0.35=200.14÷0.08=1.7542÷8=5.2539.【解答】解:7.8÷75=0.1042.55÷2.5=1.022.5×1.04=2.640.【解答】解:3.5×10.8=37.880.93÷26.7≈3.01.42÷1.1=1.241.【解答】解:(1)43.8÷12=3.65(2)0.12÷0.25=0.48(3)7÷0.35=20(4)11.62÷9=1.29(5)13÷11=1.(6)30.1÷33=0.9(7)19÷12=1.58(8)5.6÷0.07=80 42.【解答】解:30.6÷45=0.68;4.06÷0.58=7;54.6÷0.91=60;43.【解答】解:0.58×0.08≈0.050.54÷0.018=3013.6÷3=44.【解答】解:(1)95.2÷28=3.4(2)46.8÷0.13=360(3)5.63÷7.8≈0.7245.【解答】解:0.73×2.15=1.56957.38÷1.6=4.61255.95÷27.6≈0.2246.【解答】解:3.38÷18=30.9×2.7=83.435.95÷27.6≈0.2247.【解答】解:4.83÷23=0.213.09÷1.5=2.060.14÷0.08=(验算)48.【解答】解:70÷5.6=12.5227.8÷0.34=6707.525÷0.38≈19.80.49.【解答】解:8.65÷0.25=34.61.8÷12=0.157.2÷1.1≈6.5550.【解答】解:7.02×1.3=9.12629.83÷9.5=3.14 0.54÷3.6=0.15。
五年级上学期数学 小数除法 单元重难点题目汇总训练
小数除法单元重难点题目汇总训练一、填空题。
1、两个数相除的商是5.4,如果被除数和除数同时扩大到原来的10倍,则现在的商是( )。
2、把一个小数的小数点向右移动两位,得到的数比原数大19.8,则原来的小数是( )。
3、五年级同学周末去爬山,从山脚到山顶4.8千米,同学们上山用了2.6小时,下山用了2.2小时,则同学们上下山的平均速度是( )千米/时。
4、3.6米长的铁丝重14.4克,每米铁丝重( )克,1千克的铁丝长( )米。
5、根据1.242×0.65=0.8073,可得:80.73÷65=( )6、1.03÷0.3,商是3.4时,余数是( ),14.42÷12,商是1.2时,余数是( )。
7、如果甲×1.1=乙÷1.1(甲和乙均不为0),那么甲( )乙。
(填入“大于”“等于”或者“小于”)8、一辆汽车 2.4 小时行驶 60 千米,1 小时行驶( )千米,行驶 1 千米需要( )小时。
9、将0.46、0.4·6·、0.46·、0.406按照从大到小的顺序排列为:( )二、速算与巧算。
(15.5×3.2×0.63)÷(0.5×0.4×0.7) (4.8×3.6×2.7)÷(0.8×0.4×0.3)3.7×8.3+0.83×63 0.77×0.9+0.11×3.7 2.4×0.3+0.24×5+2.4×0.20.67×0.25 +0.33÷4 2015×20222022-2022×20152015三、选择题。
(1)要使28.48÷a<28.48(a不为0),那么a应该()。
A、小于1B、大于1C、等于1D、无法确定(2)、下面算式中,结果最大的是()A 4.2×0.98B 4.2÷1.3C 4.2×0.45D 4.2÷0.45(3)、如果一个非零的数乘A后积大于第一个因数,那么A()1A 大于B 小于C 等于D 无法确定(4)、在3.8÷X中,如果X大于0而小于1时,商比3.8()A.大B.小C.相等(5)、a÷b=c(a,b都大于0),当b<1时,()A.c>a B.c<a C.c=a(6)、2.5÷100与2.5×0.01的计算结果比较.()A.商较大B.积较大 C.一样大(7)、一个非零自然数除以一个大于1的数,商比这个非零自然数()A.大B.小C.不能确定(8)、0.185÷0.5的商()被除数.A.大于B.小于C.等于(9)、与91.2÷0.57得数相同的算式是()A.9.12×5.7 B.9.12÷5.7 C.912÷5.7 D.0.912÷0.057(10)、下面各题的商小于1的是()A.6.04÷6 B.0.84÷28 C.76.5÷45四、判断题。
小数除法计算题500道(口算300道竖式200道)含答案
小数除法计算题500道(口算300道竖式200道)含答案小数除法计算题500道(口算300道+竖式200道)含答案一.口算题(共50小题)1.直接写出下面各题的得数.4.8÷0.8=7.5﹣4.5=0.75÷15= 3.5×0.4=10÷0.01=10﹣2.05=0.6×1.5=4÷0.25=1.36+2.87+3.64= 1.8×0.4×0.25=2.直接写出得数.2.1÷0.7=2÷5=1÷0.2=7÷8= 5.3÷0.53=0.1÷0.01=0.25×40= 6.5﹣5.6= 1.26÷0.6=0.54÷6=3.直接写得数30.2÷2=0.01÷0.5=0.72÷8= 4.8÷0.06=6.4+3.6=1÷3=10﹣1.55= 1.25×8=4.口算.0.9÷0.03=7.2﹣2=0.05×2=0.74×11= 0.25×4÷0.25×4= 3.1÷3.1= 1.32+8﹣ 1.32+8=7.2÷40= 6.25﹣0.87+0.13=0.4×2.7×25=5.直接写得数.6.3÷0.3= 1.8×0.5=25.1+4.9= 2.5×0.5×4=6.直接写出得数.6.4÷0.2=0.9﹣0.89= 1.07+8.3= 3.6÷10=100×1.5=8.1+9= 4.5×0.2=11﹣3.9=7.直接写得数.5.6÷0.8=6.82﹣5.2= 2.5×0.04=1﹣0.5+0.5=9.15÷0.3=17.2÷0.86= 1.8÷0.1=12.5×0.8×0=8.直接写得数1.4×100=2.80÷10= 2.4÷100=0.33×1000=90÷6=0.025×100=90÷100=0.32+1.98=14.3+5.7=9×99+9=9.直接写得数.10÷0.01=0.22+0.8=10﹣2.05=4÷0.25=0÷19.8=0.2×0.05= 1.36+3.64=0.4×0.25=10.直接写得数0.25÷0.5=0.32÷0.04= 1.25×4=1.6÷0.4=0.54÷6= 5.6÷7=11.直接写得数.5.09÷10=12.5×0.8=0.5÷0.25=45.6÷1=32.1×0.2=0.25×6=0.4×0.5=0.54÷0.9=10.2÷0.01=12.5×0.8= 12.口算4÷5= 1.8÷0.03=75÷2.5=0.2×25.4=3.6+4.4=10﹣5.2= 3.4×0.2=7.8÷6=13.直接写出得数3.6÷0.3= 6.3÷7= 5.6×100=0.25×4=0.56÷28=36÷0.9=0.64+0.8=0.72×3=1.2×20=7÷5= 6.12÷0.5=2.9÷5÷0.2=14.口算3.4÷2= 2.7÷0.3=0.42÷6=4.12×2=6.3÷0.9= 1.53+2.4= 4.8×0.5= 6.4÷80=40×0.41=30.9×9=10×4.1= 4.6÷0.5= 15.直接写得数.0.25÷5=0.72÷0.9= 3.145×100=7.2÷3.6=1÷50=12.4÷4.1=0.01+0.99=7.6÷7.6= 1.25×4=50﹣0÷2.5= 16.直接写得数0.35÷5=0.3×2=0.3÷0.2=0.7×0.9=0÷7÷3= 2.4×5= 4.9×0=2×0.45×5=17.口算我最棒.0.64÷1.6= 1.4×0.5=0.72÷0.9=10.9﹣8.9=2.7+7.2=0÷1.5= 2.7×0.3=24÷0.3=4.3+2.7=200×0.07=0.25×4.9=4÷0.8=18.直接写得数0.8÷10=25+8=187÷1000=0÷58=237﹣9=257+0=0×0.008=0.001×100=6.0805×1000=24×5=19.直接写得数.0.63÷9= 5.4÷1.45=0×4.65= 3.5÷0.7=1÷0.25=4×0.5=0.1÷0.05= 3.3÷0.1=2.7÷0.90.36÷0.12=0.14÷2=9.6÷6=20.直接写得数.8.4÷4= 3.6÷0.2=0.72÷90=1.1×0.8=0.56+4.44= 1.25×5×8=2.9+3.7+2.1=7.6×8+2.4×8=0.4×0.25= 21.请你直接写出得数4.8÷0.8=7.5﹣0.45=5.7+3.3=1÷0.25=6.2÷0.62﹣1= 0.75÷1.5=0.2÷4=0.21×4= 1.2×60=5+3.2÷0.8= 22.直接写出得数.0.72÷0.9=23.7+2.63= 4.8÷0.4=0.5÷2=6.5﹣5.6=1÷0.25=8÷0.8=10÷4=0.4×0.8=0.48÷0.8=0.35×4=0.3÷0.15= 23.直接写出得数1.2÷0.4=2÷8=4÷0.5=0.72÷4=0÷5.32= 3.6+1.8=1﹣0.73=0.24÷0.6=6.4÷1.6=0.125×80=0.5×0.8=13.2÷0.6=24.直接写得数.2.5÷0.5=0.42÷0.6=3.5÷0.01=0.54÷0.6=0.8﹣0.35= 0.25×4=12.5×0.8=0.2×50=0÷3.68=0.3×0.2= 25.直接写出得数.0.56÷0.7=0.6+0.65= 3.9÷1.3=12÷0.03=5.2÷0.13=99×1.01=13.5﹣2.8﹣7.2=25×0.32×125= 26.口算3.6÷1.2=8.1÷9=4.8÷0.6= 1.25×8=99÷0.9=25÷0.05=88÷0.008=1÷2.5=27.直接写得数.0.64÷0.32=0.7×1.2=7.2÷(0.8×9)=40×0.25=0÷4.8= 2.9÷2.9=0.3×0.6=0.07×50=100×0.07=22.1×1= 28.口算0.02×0.1=12﹣4.3=36÷0.01=0.8×0.125= 2.3+0.8=0.36÷0.4÷9=29.口算.3.6÷1.2=4.4÷4= 4.8÷0.4=1÷0.25=30.直接写得数.6.4÷8=9.8÷0.14= 4.8÷16=0.63÷9=8.7÷29=0.99÷9.9= 5.5÷0.11=13.8÷6.9=31.直接写出得数.0.56÷8=0.07×10=3﹣1.9=1.2×0.1=51÷0.3= 4.3+15.37=2.9×10.02≈12.1÷3.9≈6÷0.58≈32.直接写出得数.3.6÷3=7.8÷6=9.9÷9=56.7÷7=4.8÷4= 3.9÷13= 3.6÷12=8.1÷27=0.04÷2=0.88÷4= 1.25÷5=7.5÷0.05=33.口算1÷0.25=0.78÷6= 2.4÷24=6.6÷0.6=5÷0.5=34÷0.2=0.8×7=8×0.6=70×0.12=34.直接算出得数.2.1÷2=3.8+1.02=7.5×0.4=2x﹣0.7x=10÷8=0.8×0.6= 3.2×0.5=9.6÷0.06= 3.57÷0.7= 4.5+0.76= 35.直接写出得数.22.4÷4=0.25×4=0.21÷7= 5.6÷7= 1.2×5= 42÷3= 6.12÷0.6=0.54÷6=38.5÷5=24÷0.8= 36.直接写出得数.1.6÷0.4=7.2÷8= 4.2÷0.01=2﹣3.6÷1.8=4÷5= 4.6÷0.46= 5.4÷1.8=0÷21.3=37.口算1.2÷3=0.48÷6= 4.6÷23= 6.8÷4=0.72÷12= 0.72÷4=9.6÷6= 5.2÷13=12.5÷5=0.12÷5= 38.直接写得数.56÷100= 1.29﹣0.29=0.56×100= 5.35+2.5=0.625×100=5﹣2.1=359+402=18.6﹣7=8.07×10= 3.5+0.9= 1.2+0.08=4×(25×14)= 7.34×0= 3.31+1.2=25×4÷25×4=0.25+0.2+0.75= 39.口算0.42÷0.6=5×0.6= 2.4÷0.24= 1.25×2.3×8=7.8+1.2=10÷0.1=0.1×0.1= 2.5﹣2.5×0.4= 40.直接写出得数.10﹣9.9=0.67+0.3=8.9×100= 2.5×4=8÷16=0.9×60= 1.04÷2=9.1÷7=1.5×8=0.39÷39=0.25÷8=0.05×300=0.45÷9=7.2÷9=0×5.8=4×8×0.25= 41.口算.2.4÷2=48÷0.6=0.24÷0.2= 4.8÷6= 2.4÷0.2= 4.8÷0.6=9.6÷0.3=96÷3= 42.直接写出得数16÷5=22÷4=48÷100=12.6÷3= 6.06÷6= 35÷70=95÷5= 1.3×4=12.6÷0.6= 1.8÷6= 43.直接写的数0.75÷0.5= 1.6÷0.4=7÷3.5=16.8÷0.4= 2.8÷0.28=0.5÷0.25=44.口算下面各题.5.74÷10= 4.2÷0.07=0.16×4=0.4÷0.8= 1.2×5=0.64÷2=0.56÷0.7=0.6+0.65= 3.9÷1.3=45.计算.12.8÷4=31.5÷5=39.6÷4=97.8÷6=11.7÷3=29.4÷2=83.5÷5=95.2÷4=67.8÷2= 46.口算:0.96÷8=0.08÷0.01=0.2÷0.05=0.36÷0.18=5.1÷1.7=0.54÷0.6=4.8÷0.24=10﹣0.92=0.9÷45= 2.5×4÷2.5×4=47.直接写出得数.2.5×4=10÷0.1= 2.8÷0.4= 4.5÷0.15=7.2÷0.9= 1.5×6=15÷0.5=5÷2= 1.2÷0.03= 1.3×3= 48.直接写出得数.0.3+5.7=1﹣0.6= 3.3+5.6=0.25+5.75=5.3+50.7=0.4﹣0.35=1﹣0.04=8+50.28=0.9﹣0.7=10﹣9.9=8.6×100=148.3÷100= 49.直接写出得数.3.6÷1.2=0.72÷0.9= 2.6÷13=4.8÷0.4=4.4÷4=0.78÷6=7.2÷0.4=1÷0.25=7.1×0.4= 4.5÷0.15=1﹣0.07=0.42÷0.7=50.直接写得数0.29÷100=5÷1000=19+0÷19=423﹣(100+23)= 170×100=320÷100=90﹣26﹣13=0.56×100÷1000=0.26×1000=24×99+24=38﹣25+12﹣25=500÷100×1000=二.竖式计算(共50小题)1.竖式计算.0.51÷0.5=98÷5.6=20.4÷1.7=验算:2.用竖式计算(★需验算,除不尽的保留两位小数).1.092÷0.42=★210÷1.4=8.9÷0.56≈3.列竖式计算.69.02÷3.4 26.8×0.35 46.8÷3.4(保留一位小数)4.列竖式计算.2.05÷25 0.13÷0.17(商精确到百分位)4.2÷0.28 4.2÷1.32(得数保留三位小数)5.用竖式计算.117.3÷0.46 24×0.37 40.32÷l.68.6.竖式计算2.1÷0.7= 7÷0.35=7.2÷4=7.用竖式计算并验算.2.76×24=12.6÷0.28=8.用竖式计算.220.5÷15=(用乘法验算)2.64×1.09=(得数保留两位小数)6.3÷0.125=0.84×1.65=9.列竖式计算.(后两题得数保留两位小数)33.6÷568.96÷0.287.12÷0.22 4.13÷14.10.竖式计算.12.4÷4=45.9÷0.6=51÷0.3=52.8÷12=75.6÷0.18=9.6÷0.32=11.用竖式计算13÷2.554.5÷0.160.68÷0.95(保留两位小数)2.05×0.16(验算)78.6÷11=(商用循环小数表示)6.21÷0.03.12.竖式计算,带*的要验算.1.25÷0.25=78.6÷11=(商用循环小数示)5.63÷7.8≈数保留两位小数)28.28÷0.4=*0.303÷5=13.列竖式计算(带★的保留两位小数)★1.57÷3.9 ★0.58×0.24 70.7÷33(商用循环小数表示)14.竖式计算(得数保留1位小数)带★的验算★64.8÷1.8≈★8﹣6.69≈0.65×3.84≈15.竖式计算.(带*的要验算)9.4÷11=*144÷12=14.2÷11=16.竖式计算.75.6÷0.1825.6÷0.032 2.78×1.85.63÷6.1(得数保留两位小数)10÷3.3(用循环小数表示)17.竖式计算,按要求保留商的近似值.30÷7 (保留两位小数)60.9÷3.2(保留一位小数)25÷9.9(保留整数)18.用竖式计算(1)6.21÷0.03= (2)10.8÷45=(3)8.54÷0.7= (4)72.9÷0.9=19.竖式计算.(第②、④题验算)①50.96÷6.5 ②9.25÷3.7= ③15÷74 ④6.72÷4.2=20.用竖式计算(1)1.25÷0.25= (2)8.4÷0.56=(3)8.54÷0.7=(验算)(4)78.6÷11=(商用循环小数表示)21.用竖式计算.4.5×0.18= 2.346÷2.3=验算:70.3×3.6=5.06÷2.2=22.用竖式计算(带*得数保留两位小数)2.6×0.25 29.9÷0.46*4.65÷1.3.23.列竖式计算(除不尽的保留两位小数)①24.6÷0.16;②13.9÷6;③0.325÷1.5;④6.24÷0.8;⑤18.3÷4;⑥19.2÷6.24.用竖式计算,并指出哪些是循环小数.7.05÷0.94 1.71÷3.84.83÷0.75.7÷938.2÷2.7 2.16÷181.8÷0.25 3.7÷2.2.25.用竖式计算(1)3.9÷0.26≈(2)9.35÷3.4≈(得数保留一位小数)(3)0.17÷0.11≈(商用循环小数表示)(4)0.168÷0.7≈(5)4.05÷18≈(得数保留两位小数)(6)4.68÷5.4=(商用循环小数表示)26.用竖式计算21.45÷15;49.04÷8;217.6÷34;11.7÷36;1.69÷26;54.81÷27.27.将下列式子的得数保留两位小数①25.32÷0.15 ②1.03÷1.2③1.07÷9.2④9.45÷0.32 ⑤13.51÷0.13 ⑥17.96÷0.36.28.列竖式计算.(第三小题得数保留两位小数,第五小题请写出验算过程.)47.04÷5.6= 3.28×2.7=0.764×1.2≈52.92÷0.27=8÷1.28=15.36÷12=29.列竖式计算:0.195÷0.13 3.6÷0.8 76.76÷0.766÷2.4 7.085÷0.65 9.72÷0.27.30.竖式计算.(1)0.38×0.23(2)5.79×3.6(3)4.6×0.25(4)6÷24 (5)52.95÷75 (6)3.01÷7 (7)4.95÷11(8)84.01÷31(用乘法验算)(9)0.646÷19(10)4.7×0.59.31.计算下面各题,并用乘法验算(1)15.6÷12 (2)328÷16 (3)1.35÷27(4)0.646÷19.32.用竖式计算下列各题.(除不尽的保留两位小数,后面两道题要验算)45.15÷1.5= 52.65÷1.3= 15.75÷2.1=8.42+0.6=0.436÷0.2=9.25÷3.7=33.列竖式计算6.6÷443.5÷2918.9÷27 1.35÷1537.5÷628.6÷1120.4÷24 3.64÷52.34.竖式计算0.448÷32=14.3+6.7= 3.8×0.26=11.32﹣8.95=35.用竖式计算1.26÷1.8=64×5.04=43.5÷0.29=验算5.63÷6.1(得数保留两位小数)27.8÷2.5=验算9.8×0.75=36.笔算5.02×4.8= 1.35×320=26÷0.13=48÷2.3≈(得数保留两位小数)。
新人教版五年级上册小数简便计算练习题六套题
小数简便计算练习一(一)小数加减法计算3.2+0.36+4.8+1.64 0.456+6.22+3.78 6.9+4.8+3.1 1.29+3.7+2.71+6.30.398+0.36+3.64 4.02+5.4+0.98 73.8-1.64-13.8-5.36 7.14-0.53-2.47 5.17-1.8-3.2 35.6-1.8-15.6-7.2 66.86-8.66-1.34 36.8-3.9-6.17.85+2.34-0.85+4.66 13.35-4.68+2.65 9.6+4.8-3.65.27+2.86-0.66+1.63 3.68+7.56-2.68 47.8-7.45+8.8(二)小数乘除法计算0.25×16.2×4 320÷1.25÷8 3.9÷(1.3×5)3.52÷2.5÷0.4 9.6÷0.8÷0.4 2.5×2.43.2×0.25×12.5 15÷(0.15×0.4) 2.7÷458.54÷2.5÷0.4 0.25×0.73×4 4.6÷3.5(一)小数加减法计算3.82+2.9+0.18+9.1 1.27+3.9+0.73+16.1 1.57+0.245+7.432.64+8.67+7.36+11.33 0.134+2.66+0.866 1.76+0.195+3.24 23.4-0.8-13.4-7.2 15.02-6.8-1.02 8-2.45-1.553.25+1.79-0.59+1.75 1.23+3.4-0.23+6.6 7.5+4.9-6.5 13.75-(3.75+6.48) 15.89+(6.75-5.89) 12.7-(3.7+0.84)(二)小数乘除法计算0.8×(4.3×1.25) 4.36×12.5×8 0.25×0.73×4 320÷1.25÷8 17.8÷(1.78×4) 4.5÷1.8 12.5×0.96×0.8 1.25×2.5×32 4.9÷1.4 0.35×(1.25×2)×0.8 63.4÷2.5÷0.4 0.25×36(一)小数加减法计算2.35+1.713+0.287+7.65 4.8+8.63+5.2+0.37 5.93+0.19+2.81 67.34+21.56+2.66+8.44 0.74+19.16+9.26+0.82 6.02+3.6+1.9815.75+3.59-0.59+14.25 3.9-4.1+6.1-5.9 14-7.32-2.6825.48-(9.4-0.52) 9.43-(6.28-1.57) 146.5-(23+46.5) 36.54-1.76-4.54 3.07-0.38-1.62 32+4.9-0.9(二)小数乘除法计算3.2×0.25×12.5 12.5×0.96×0.84.2÷3.515.2÷0.25÷4 1.25×2.5×32 0.49÷1.418-1.8÷0.125÷0.8 930÷0.6÷5 70÷282.31×1.6×0.5×1.25 0.25×8.5×4 15÷0.255.6÷1.25÷0.8÷2.5÷0.4 0.125×16.2×167.09×10.8-0.8×7.09 3.72×3.5+6.28×3.5 27.5×3.7-7.5×3.7 3.83×4.56+3.83×5.44 3.9×2.7+3.9×7.3 7.6×0.8+0.2×7.6乘法分配律的运用二3.14×0.68+31.4×0.032 32.4×0.09+0.1×3.24 1.28×8.6+7.2×86 2.3×16+2.3×22+23×0.2 9.16×15-0.5×91.6 101×0.87-0.91×87乘法分配律的运用三28.6×101-28. 6 1.87×9.9+0.187 58.5×81-8.5 (45.9-32.7)÷8÷0.125 (1.25-0.125)×8 (2.5-0.25)×0.4乘法分配律的运用四0.8×100.1 0.79×199 0.85×1993.65×10.14.6×102 0.65×1017.74×(2.8-1.3)+1.5×2.26 46×57+23×869.16×2.53-0.053×91. 6-9.16小数简便计算练习五小数简便计算的方法:(整数的运算定律在小数中同样适用)○1乘法交换律与结合律、分配律的运用。
小数除法专题训练
小数除法专项训练1:除数是整数的小数除法技巧:小数除以整数,按整数除法的方法去除,商的小数点要和被除数的小数点对齐,如果有余数,要添0后继续除。
当被除数比除数小,整数部分不够商1时,要先在商的个位上写0,点上小数点后再除。
一.填空1. 计算一个小数除以整数时,商的小数点要和()的小数点()。
2. 0.3里面有()个十分之一,有()个百分之一。
3. 0.08里面有()个百分之一,有()个千分之一。
4. ()个十分之一是0.6,()个千分之一是0.25。
二.计算6.5÷5= 16.8÷6= 3.2÷8= 0.64÷4=7.2÷6= 5.1÷17= 9.1÷13= 0.72÷8=三.用竖式计算(带*要验算)12.8÷4= 1.68÷12= 0.416÷32=10÷25= 59.16÷29= * 14.21÷7=四.列式计算1.什么数扩大15倍是48.15?2.把31.2平均分成26份,每份是多少?五.解决问题1.一瓶饮料1.5千克,正好倒满12杯,平均每杯多少千克?2.五年级两个班去植树,一班42人共植树147棵,二班45人共植树117棵,哪班人均植树多?小数除法专项训练2:除数是小数的除法技巧:一个数除以小数,先移动除数的小数点,使它变成整数;除数的小数点向右移动几位,被除数的小数点也向右移动几位(位数不够的,在被除数的末尾用0补足),然后按照除数是整数的除法进行计算。
一.填空1. 在除法中,如果除数扩大100倍,要使商不变,被除数也要()。
2. 两个数相除的商是3.7,如果被除数和除数都扩大10倍,那么商()。
3. 6.42÷0.41=()÷41,这是根据()性质。
二.直接写出得数36÷0.36= 0.81÷0.9= 0.99÷1.1= 0.91÷1.3=0.27÷0.3= 54÷0.09= 8.66÷0.2= 51÷0.17=三.在○里填上“>”、“<”、“=”12.01÷1.02○12.01 0.87÷1○0.87 9.72÷0.08○9.72 0÷0.09○0三.用竖式计算(带*要验算)7.2÷0.04= 0.636÷5.3= 4.32÷3.6=75.6÷0.36= 78.48÷2.4= * 0.21÷0.012=五.列式计算1.两个因数的积是12.6,一个因数是8.4,另一个因数是?3.某数的1.5倍是0.456,这个数是多少?六.解决问题1.小佳买了单价是4.5元的水彩笔,付20元钱,找回了6.5元,她买了几枝水彩笔?2.胖子水果店5.5千克苹果售价55元,平均每千克苹果卖多少元?1元钱能买多少千克苹果?。
北师大版五年级数学上册第一单元小数除法单元测试试题(含答案)
五年级数学上册第一单元小数除法单元测试试题(满分:120分时间:90分钟)一.填空题.(共29分)1.9÷11的商是()小数,用简写方法写作(),保留两位小数是().2.8.997保留两位小数是(),保留一位小数是().3.两个数相除的商是3.2,如果被除数扩大4倍,除数缩小到原来的12,商将是().4.用一根长6.8米的铁丝,做一个正方形框架,该正方形的边长是()分米,面积是()平方米.5.54分=()时3吨50千克=()吨9角=()元56平方米=()公顷6.甲车0.42小时行驶33.6千米,则甲车每小时行驶()千米,行驶1千米需要()分钟.7.大小比较.0.89÷0.999○0.89 9.9÷0.01○9.9×100 2.5×9.9○2.5÷9.92.08÷1.45○2.08 4.5×0.89○4.5÷0.89 0.8÷0.4○0.8+0.48.将数5.069,5.069,5.069,5.069,5.609按从小到大顺序排列:()<()<()<()<()。
9.甲数是1.225,是乙数的2.5倍,则甲和乙两数的和是().10.一个三位小数保留一位小数后是4.0,这个三位小数最大是(),最小是(),它们相差().二.判断题.(共5分)1.循环小数一定是无限小数,无限小数一定是循环小数.()2.两个小数相除,商一定小于被除数.()3.7.999保留两位小数后是8.()4.0.14×0.6÷0.14×0.6=1.()5.一个数除以0.01,也就是把这个数扩大到原来的100倍.()三.单选题。
(共5分)1.在计算0.84÷0.25时,需要将被除数和除数同时()A.扩大10倍B.缩小到原来的110C.扩大100倍 D.缩小到原来的11002.大于0.27同时小于0.29的小数有()个.A.1B.2C.11D.无数3.一个循环小数0.56325632...它的小数部分的第2023个数是()A.5B.6C.3D.24.下列算式中,商最小的是()A.5.7÷14B.5.7÷1.4C.0.57÷14D.0.57÷0.0145.一个瓶子可以装4.2升食用油,小明有50升食用油,至少需要()个这样的瓶子.A.10B.11C.12D.136.一个循环小数5.34083408...,它的小数部位的第103个数是().A.3B.4C.0D.8四.计算题.1.口算题.(共8分)4.5÷0.9= 0.1÷10= 0.2×0.5÷0.2×0.5= 77÷0.11=2.4÷0.06= 32÷0.8= 2.1-0.6=3.2÷25÷4=5×0.8= 0.57÷0.3= 0.4×4÷0.4×4= 15÷0.3=0.1÷0.01= 0÷5.6= 3.1÷25÷4= 12.5×0.8=2.列竖式计算.(共18分)0.05304÷0.052= 3.51÷7.8= 6.624÷3.2=0.448÷1.6= 2.4÷0.75= 0.3525÷0.047=3.脱式计算.(共12分)8.95×4.7+8.95×6.3-8.95 18.72÷(9.23-6.83)4.列式计算.(共9分)1.3.57加上4.515除以4.3的商,和是多少?2.10.44除以7.73与4.13的差,商是多少?3.2.773除以0.47的商,再减去3.94,差是多少?五.解答题。
小数除法脱式运算+简算300道(含答案)
⼩数除法脱式运算+简算300道(含答案)⼩数除法脱式运算+简算300道⼀.计算题(共50⼩题)1.⽤递等式进⾏计算,能简便的要简便简便计算.7.29×4.6+46×1.271 (28.7﹣18.6÷3.1)×0.8 16﹣5.32﹣4.68 3.7×0.125+6.3÷8 40.8+14.7÷(14.6﹣12.5)0.72+9.6÷3.2 2.⽤简便⽅法计算.3.7×4.5﹣4.4×3.70.25×0.25×4 3.84﹣1.9+0.16﹣1.19﹣7÷2.5×0.4 5.5×[0.672÷(2+2.2)]3.⽤递等式计算,能简算的要简算.28.7÷7×4.59.6÷(15.4﹣12.2)4.6×1.2+2.8×4.693÷3.1÷0.34.计算下列各题(能⽤简便算法的要⽤简便算法).(4.15+0.65)×0.9 9.06×14.7+5.3×9.06(2.3+1.05÷2.1)×2.5 9.18÷[(5.9﹣2.3)×0.25].5.选择合理的⽅法进⾏计算,并写出计算主要过程.12.5×0.5×8 17.5÷(5.7﹣3.2)48.77﹣32.76÷8.410.25÷2.5÷0.4 18.1﹣2.8×4.6 3.01×101﹣30.1×0.1.6.脱式计算,能简算的要简算.4.8÷2.04÷2.4 1.1÷(22÷5)25÷40×0.472+0.9÷0.125 17.37÷0.45﹣3.86÷0.1 9.07﹣22.78÷3.4+3.7.7.⽤递等式计算,能简算的要简算.10.01×101﹣10.01 0.11×1.8+8.2×0.1126×20.2﹣8.4﹣1.8 12.05÷1.25÷0.8.8.递等式计算(能简算的要简算)6.5×99 4.65﹣2.55﹣1.45 2.2×0.25+2.8×0.25 0.25×6.82×4.9.计算下⾯各题,能简算的要简算.102×4.5 8×(20﹣1.25)8.3+8.3×99 (1.25+12.5+125)×8.10.计算(能简算要简算)2.64+8.67+7.36+11.33 2.74×9.5+0.5×2.7(2400﹣480×2.5)÷1.616.8×10.1 1.25×88 6.87×[40÷(3.49﹣3.09)].11.脱式计算(能简简的要简算)2.8+0.2﹣2.8+0.2 37÷12.5÷0.8 1.25×(10+0.8)10.8﹣3.8×0.4÷0.76 0.36÷[(6.1﹣4.6)×0.8].12.计算下⾯各题,能简算的要简算.4.05÷0.9+5.5 3.67×10.1﹣3.67×0.199×0.73+0.73 3.3+6.7×3.5.13.怎样简便怎样算3.7÷2.5÷0.40.25×1.25×329.83×1.5+0.617×15.14.计算下⾯各题.(能简算的要简算)12.13+7.5﹣12.13 7.69﹣(3.7+2.69)7.8×1.019.4×3.2+6×0.32 12.5×3.2 13.8÷(1.38×2)15.下⾯各题,怎样简便就怎样算432.5÷25÷0.4 1.25×3.2×2.5 0.81×99+0.815.9×10.1 100﹣52.8﹣47.2(4﹣0.4)×0.25.16.计算下⾯各题,能简算的要简算.0.75×18÷0.15 9.3÷0.125÷8 1.78×99+1.784.7×4.28+5.3×4.28 2.3×10.2 21.36÷0.2﹣25.9.17.怎样简便就怎样计算28.4×99+28.4 3.6×2010.94×2.5﹣0.454×0.8×12.5×2.517.5÷0.25×17+1315.58÷8.2﹣0.72.18.计算,能简算的要简算.1.25×2.5×0.8×43=10÷0.2÷2.5=8.4÷0.21÷0.5=64×4.5+3.6×45= 1.25×3.2×0.8=14.5×102=19.脱式计算,能简算的要简算.0.34×101 8.8×1.25 2.94×6.3+3.7×2.9421.9﹣9.28﹣10.72 2.7+(11.2﹣2.7)×0.4 1.5×[0.02÷(2.1﹣2.09)].20.计算下⾯各题.(能简算的要简算)10.7﹣22.78÷3.4 5.5×17.3+6.7×5.5 3.76÷0.4÷2.5 0.25×12.5×3.2.21.递等式计算,能简便计算的要简便计算.4.6×25 3.75÷12.5÷0.8 2.5+7.5÷4(3.2﹣1.4)÷0.18﹣1.87.9×7.1+2.9×7.9(30.2﹣4.6×5)÷0.12.22.下⾯各题,怎样简便就怎样计算.0.75×0.5×0.8 5.6×15.7+9.3×5.6 50.4×1.9﹣1.8.23.计算下⾯各题,注意运⽤简便⽅法.2.4﹣0.2÷5×60 0.25×6.8×405.52﹣0.55﹣0.45 0.49×7.2﹣7.2×0.39.24.计算,能简算的要写出简算过程.4×0.8×2.5×12.5 2.25×4.8+77.5×0.48.25.计算下⾯各题,能简算的要简算.13.73+6.27÷0.318÷0.4÷2.5 0.75×99+0.752.85×5.35+2.85×4.65 1.5×0.4÷1.5×0.4.26.怎样简便就怎样计算28.4×99+28.4 3.6×201 0.94×2.5﹣0.454×0.8×12.5×2.5 17.5÷0.25×17+13 1.25×8.08.27.下⾯各题,怎样算简便就怎样算.2.45﹣(1.45+0.89) 1.25×1.7×0.8 5.3×0.82﹣0.82×0.33.6÷[12×(0.53﹣0.45)].28.计算下⾯各题,能简算的要简算.125×32×2.5 2.6×(3.4+1.6) 6.7×5.5+5.5×3.3.36×999.07﹣2.2﹣7.817.6÷4÷2.529.计算下⾯各题,能简算的要简算.2.5×0.27×4 0.63×101 0.78+0.22÷53.7×12.5+4.3×12.5 (0.36+5.4)÷0.6 4.5÷0.25÷1.6.30.脱式计算(能简便的⽤简便计算).1.6×(2.25+10.5÷1.5)74×57+43×740.6÷[(6.1﹣4.6)×0.8]101×92﹣92125×64 46.2×0.56+5.37×5.6+1×0.05631.脱式计算(能简算的就简算)1.5×102 1.25×213×0.8 72×0.81﹢10.41.25×5.6 6.05÷0.5+10.75 29.6÷0.8﹣1.2×5.32.脱式计算下列各题,能简算的要简算.2.69×99+2.69 1.25×2.3×0.83.17×5.6+4.4×3.1738÷0.25÷0.4 6.5÷0.125 0.225÷0.25×433.脱式计算(能简算的要简算).17.54+28.35+3.46+1.55 32.36﹣13.43﹣(7.57+1.36)7.2×2.745÷0.363.85×5.6+5.4×3.85﹣3.85 (3.2+0.128)÷0.8 (13.3﹣8.8)×3.2÷0.36.34.脱式计算(能简算的要简算)0.75×4×0.25×4 6.3×10.115.58÷8.2﹣0.72 4.536÷0.8÷14.35.脱式计算,能简算的要简算.7.5×2+1.25÷0.598×7.580÷0.25+0.75 19×3.8+3.8 1.25×3.4×0.8 5.12÷0.4÷2.536.计算,能简算的要简算55.04+12.8﹣3.30.25×32×0.1257.8×75+75×0.2.37.⽤你喜欢的⽅法计算.0.21×14÷0.50.25×13×4 1.25×9.7﹣1.25×1.716.5÷[(5.2+4.8)×1.5](8.92﹣0.45)÷(2.5+4.5)38.下⾯各题怎样算简便就怎样算.6.8×0.46+0.54 5.4×2.3+5.4×7.70.25×32×12.5 75÷1.25÷8.39.⽤递等式计算,(有★⽤简算)7.8﹣7.2+0.9 0.38+0.26+3.4 (125﹣45)×313+[(41+22)÷9]★6.7+2.5+3.3★13×25×4.40.脱式计算,能简算的要简算12.8+2.04×9.50.15×1999+0.150.76×6.5﹣0.76×5.578÷0.25÷0.4.41.计算下⾯各题,怎样简便就怎样计算.4.05÷0.5+10.75 6.8×2.7+2.7×3.2 6.8×0.75÷0.570.3﹣17.48÷7.6 8.5×1.2÷3.4 13.75÷0.125﹣2.7.42.计算下⾯各题,能⽤简便⽅法计算的要⽤简便⽅法.0.75×18÷0.15 6.15÷0.125÷0.8 4.55÷0.28﹣0.471.7×2.5×0.08 1.89×11﹣1.893.6×0.35+6.4×0.3543.计算下⾯各题,能简算的要简算.3.4+6.6÷0.3 25×1.25×0.04×0.899×0.73+7.3×0.1 96.5÷1.25÷0.8.44.脱式计算(能简算的⽤简算⽅法)82.4﹣12.4×5 18.5﹣3.21﹣4.79 8.4+3.8+1.6+6.20.25×17.3×0.4 7.2×(10+0.1) 3.54×0.29﹣0.29×2.5445.计算下列各题,怎么简便就怎么算.0.125×32 8.8÷0.25÷4 56.5×99+56.50.78×1019.9﹣2.07÷2.312.75÷[14.6﹣(1.3+8.2)].46.计算,能简算的要简算.60.8﹣36÷3.6 12.5×7.2×0.899×78.5+78.5 24.6﹣8.9﹣1.10.9+9.9+99.9+999.9 695÷25÷4.47.脱式计算(能简算的要简算)5.8+6.3÷9×0.5 1.25×0.8÷1.25×0.8 1.92÷0.12﹣2.72.65×1.7+1.35×1.7﹣1.7138÷0.25÷4 1.25×2.5×3.248.你能想出简便⽅法来计算下⾯各题吗?25×5+74×5+5 6.74+12.62+24.38+3.2687﹣2.123﹣0.877 30.65﹣(7.65+5.4)(40+8)×125 32×38+32×62.49.脱式计算.(能简算的要简算)65×102 8.23﹣(2.67+3.23)32×16+14×32 8.46+7.26+1.51+2.84 27×[(263+37)÷50]125×32×25.50.递等式计算(能简算的要简算)5.6×0.25 0.32×0.25×12.56.4÷(0.3×2+0.2)201×6.5﹣6.5 102×4.5 2.2×0.25+2.8×0.25.⼩数除法脱式运算+简算300道参考答案与试题解析⼀.计算题(共50⼩题)1.【解答】解:①7.29×4.6+46×1.271 =7.29×4.6+4.6×12.71=(7.29+12.71)×4.6=20×4.6=92;②(28.7﹣18.6÷3.1)×0.8 =(28.7﹣6)×0.8=22.7×0.8=18.16;③16﹣5.32﹣4.68=16﹣(5.32+4.68)=16﹣10=6;④3.7×0.125+6.3÷8 =3.7×+6.3×=(3.7+6.3)×=10×=;⑤40.8+14.7÷(14.6﹣12.5)=40.8+14.7÷2.1=40.8+7=47.8;⑥0.72+9.6÷3.2=0.72+3=3.72.2.【解答】解:(1)3.7×4.5﹣4.4×3.7=3.7×(4.5﹣4.4)=3.7×0.1=0.37;(2)0.25×0.25×4=0.25×(0.25×4)=0.25×1=0.25;(3)3.84﹣1.9+0.16﹣1.1=(3.84+0.16)﹣(1.9+1.1)=4﹣3=1;(4)9﹣7÷2.5×0.4=9﹣2.8×0.4=9﹣1.12=7.88;(5)5.5×[0.672÷(2+2.2)]=5.5×[0.672÷4.2]=5.5×0.16=0.88.3.【解答】解:(1)28.7÷7×4.5=4.1×4.5=18.45(2)9.6÷(15.4﹣12.2)=9.6÷3.2=3(3)4.6×1.2+2.8×4.6=4.6×(1.2+2.8)=4.6×4=18.4(4)93÷3.1÷0.3=30÷0.3=1004.【解答】解:(1)(4.15+0.65)×0.9=4.8×0.9=4.32;(2)9.06×14.7+5.3×9.06=9.06×(14.7+5.3)=9.06×20=181.2;(3)(2.3+1.05÷2.1)×2.5=(2.3+0.5)×2.5=2.8×2.5=7;(4)9.18÷[(5.9﹣2.3)×0.25]=9.18÷[3.6×0.25]=9.18÷0.9=10.2.5.【解答】解:(1)12.5×0.5×8=12.5×8×0.5=100×0.5=50;(2)17.5÷(5.7﹣3.2)=17.5÷2.5=7;(3)48.77﹣32.76÷8.4=48.77﹣3.9=44.87;(4)10.25÷2.5÷0.4=10.25÷(2.5×0.4)=10.25÷1=10.25;(5)18.1﹣2.8×4.6=18.1﹣12.88=5.22;(6)3.01×101﹣30.1×0.1=3.01×(101﹣1)=30.1×100=30100.6.【解答】解:(1)4.8÷2.04÷2.4=4.8÷2.4÷2.04=2÷2.04=(2)1.1÷(22÷5)=1.1÷22×5=0.05×5=0.25(3)25÷40×0.4=25×0.4÷40=10÷40=0.25(4)72+0.9÷0.125=72+7.2=79.2(5)17.37÷0.45﹣3.86÷0.1=38.6﹣38.6=0(6)9.07﹣22.78÷3.4+3.7=9.07﹣6.7+3.7=2.37+3.7=6.077.【解答】解:(1)10.01×101﹣10.01=10.01×(101﹣1)=10.01×100=1001(2)0.11×1.8+8.2×0.11=0.11×(1.8+8.2)=0.11×10=1.1(3)26×20.2﹣8.4﹣1.8=525.2﹣(8.4+1.8)=525.2﹣10.2=515(4)12.05÷1.25÷0.8=12.05÷(1.25×0.8)=12.05÷1=12.058.【解答】解:①6.5×99=6.5×(100﹣1)=6.5×100﹣6.5=650﹣6.5=643.5②4.65﹣2.55﹣1.45=4.65﹣(2.55+1.45)=4.65﹣4=0.65③2.2×0.25+2.8×0.25=(2.2+2.8)×0.25=5×0.25=1.25④0.25×6.82×4=(0.25×4)×6.82=1×6.82=6.829.【解答】解:①102×4.5=(100+2)×4.5=100×4.5+2×4.5=450+9=459②8×(20﹣1.25)=8×20﹣8×1.25=160﹣10=150③8.3+8.3×99 =8.3×(1+99)=8.3×100=830④(1.25+12.5+125)×8=1.25×8+12.5×8+125×8=10+100+1000=110+1000=111010.【解答】解:①2.64+8.67+7.36+11.33=(2.64+7.36)+(8.67+11.33)=10+20=30②2.74×9.5+0.5×2.7=26.03+1.35=27.38③(2400﹣480×2.5)÷1.6=(2400﹣1200)÷1.6=1200÷1.6=750④16.8×10.1=16.8×(10+0.1)=16.8×10+16.8×0.1=168+1.68=169.68⑤1.25×88=1.25×(80+8)=1.25×80+1.25×8=100+10=110⑥6.87×[40÷(3.49﹣3.09)]=6.87×[40÷0.4]=6.87×100=68711.【解答】解:(1)2.8+0.2﹣2.8+0.2=(2.8﹣2.8)+(0.2+0.2)=0+0.4=0.4(2)37÷12.5÷0.8=37÷(12.5×0.8)=37÷10=3.7(3)1.25×(10+0.8)=1.25×10+1.25×0.8=12.5+1=13.5(4)10.8﹣3.8×0.4÷0.76=10.8﹣1.52÷0.76=10.8﹣2=8.8(5)0.36÷[(6.1﹣4.6)×0.8]=0.36÷[1.5×0.8]=0.36÷1.2=0.3 12.【解答】解:(1)4.05÷0.9+5.5=4.5+5.5=10(2)3.67×10.1﹣3.67×0.1=3.67×(10.1﹣0.1)=3.67×10=36.7(3)99×0.73+0.73=(99+1)×0.73=100×0.73=73(4)3.3+6.7×3.5=3.3+23.45=26.7513.【解答】解:①3.7÷2.5÷0.4=3.7÷(2.5×0.4)=3.7÷1=3.7②0.25×1.25×32=0.25×1.25×(4×8)=(0.25×4)×(1.25×8)=1×10=10③9.83×1.5+0.617×15=9.83×1.5+6.17×1.5=1.5×(9.83+6.17)=1.5×16=2414.【解答】解:①12.13+7.5﹣12.13=12.13﹣12.13+7.5=0+7.5=7.5 ②7.69﹣(3.7+2.69)=7.69﹣3.7﹣2.69=7.69﹣2.69﹣3.7=5﹣3.7=1.3③7.8×1.01=7.8×(1+0.01)=7.8×1+7.8×0.01=7.8+0.078=7.878④9.4×3.2+6×0.32=9.4×3.2+0.6×3.2=3.2×(9.4+0.6)=3.2×10=32 ⑤12.5×3.2=12.5×(8×0.4)=12.5×8×0.4=100×0.4=40 ⑥13.8÷(1.38×2)=13.8÷1.38÷2=10÷2=515.【解答】解:①432.5÷25÷0.4=432.5÷(25×0.4)=432.5÷10=43.25②1.25×3.2×2.5=1.25×(8×0.4)×2.5=(1.25×8)×(0.4×2.5)=10×1=10③0.81×99+0.81=0.81×(99+1)=0.81×100=81④5.9×10.1=5.9×(10+0.1)=5.9×10+5.9×0.1=59+0.59=59.59⑤100﹣52.8﹣47.2=100﹣(52.8+47.2)=100﹣100=0⑥(4﹣0.4)×0.25=4×0.25﹣0.4×0.25=1﹣0.1=0.916.【解答】解:(1)0.75×18÷0.15=0.75÷0.15×18=5×18=90;(2)9.3÷0.125÷8 =9.3÷(0.125×8)=9.3÷1=9.3;(3)1.78×99+1.78=1.78×(99+1)=1.78×100=178;(4)4.7×4.28+5.3×4.28 =(4.7+5.3)×4.28=10×4.28=42.8;(5)2.3×10.2 =2.3×(10+0.2)=2.3×10+2.3×0.2=23+0.46=23.46;(6)21.36÷0.2﹣25.9=106.8﹣25.9=80.9.17.【解答】解:(1)28.4×99+28.4=28.4×(99+1)=28.4×100=2840(2)3.6×201=3.6×(200+1)=3.6×200+3.6×1=720+3.6=723.6(3)0.94×2.5﹣0.45=2.35﹣0.45=1.9(4)4×0.8×12.5×2.5=(4×2.5)×(0.8×12.5)=10×10=100(5)17.5÷0.25×17+13=70×17+13=1190+13=1203(6)15.58÷8.2﹣0.72=1.9﹣0.72=1.1818.【解答】解:(1)1.25×2.5×0.8×43=1.25×0.8×2.5×43=1×2.5×43=107.5;(2)10÷0.2÷2.5=10÷(0.2×2.5)=10÷0.5=20;(3)8.4÷0.21÷0.5=40÷0.5=80;(4)64×4.5+3.6×45=64×4.5+36×4.5=(64+36)×4.5=100×4.5=450;(5)1.25×3.2×0.8=1.25×0.8×3.2=1×3.2=3.2;(6)14.5×102=14.5×(100+2)=14.5×100+14.5×2=1450+29=1479.19.【解答】解:(1)0.34×101=0.34×(100+1)=0.34×100+0.34×1=34+0.34=34.34;(2)8.8×1.25=(1.1×8)×1.25=1.1×(8×1.25)=1.1×10=11;(3)2.94×6.3+3.7×2.94=2.94×(6.3+3.7)=2.94×10=29.4;(4)21.9﹣9.28﹣10.72=21.9﹣(9.28+10.72)=21.9﹣20=1.9;(5)2.7+(11.2﹣2.7)×0.4=2.7+8.5×0.4=2.7+3.4=6.1;(6)1.5×[0.02÷(2.1﹣2.09)]=1.5×[0.02÷0.01]=1.5×2=3.20.【解答】解:①10.7﹣22.78÷3.4 =10.7﹣6.7=4②5.5×17.3+6.7×5.5=5.5×(17.3+6.7)=5.5×24=132③3.76÷0.4÷2.5=3.76÷(0.4×2.5)=3.76÷1=3.76 ④0.25×12.5×3.2=0.25×12.5×(4×0.8)=(0.25×4)×(12.5×0.8)=1×10=1021.【解答】解:(1)4.6×25=(4+0.6)×25=4×25+0.6×25=100+15=115;(2)3.75÷12.5÷0.8=3.75÷(12.5÷0.8)=3.75÷10=0.375;(3)2.5+7.5÷4=2.5+1.875=4.375;(4)(3.2﹣1.4)÷0.18﹣1.8=1.8÷0.18﹣1.8=10﹣1.8=8.2;(5)7.9×7.1+2.9×7.9=7.9×(7.1+2.9)=7.9×10=79;(6)(30.2﹣4.6×5)÷0.12=(30.2﹣23)÷0.12=7.2÷0.12=60.22.【解答】解:(1)0.75×0.5×0.8=0.75×(0.5×0.8)=0.75×0.4=0.3;(2)5.6×15.7+9.3×5.6=5.6×(15.7+9.3)=5.6×25=14×0.4×25=14×(0.4×25)=14×10=140;(3)50.4×1.9﹣1.8=95.76﹣1.8=93.96.23.【解答】解:①2.4﹣0.2÷5×60=2.4﹣0.04×60=2.4﹣2.4=0②0.25×6.8×40=(0.25×40)×6.8=10×6.8=68③5.52﹣0.55﹣0.45=5.52﹣(0.55+0.45)=5.52﹣1=4.52④0.49×7.2﹣7.2×0.39=7.2×(0.49﹣0.39)=7.2×0.1=0.7224.【解答】解:(1)4×0.8×2.5×12.5=(4×2.5)×(0.8×12.5)=10×10=100(2)×14+87×﹣=×(14+87﹣1)=×100=80(3)(+)×42 =×42+×42=35+12=47(4)2.25×4.8+77.5×0.48=2.25×4.8+7.75×4.8=(2.25+7.75)×4.8=10×4.8=48 25.【解答】解:(1)13.73+6.27÷0.3=13.73+20.9=34.63;(2)18÷0.4÷2.5=18÷(0.4×2.5)=18÷1=18;(3)0.75×99+0.75=0.75×(99+1)=0.75×100=75;(4)2.85×5.35+2.85×4.65=2.85×(5.35+4.65)=2.85×10=28.5;(5)1.5×0.4÷1.5×0.4=1.5÷1.5×0.4×0.4=1×0.4×0.4=0.4×0.4=0.16.26.【解答】解:(1)28.4×99+28.4=28.4×(99+1)=28.4×100=2840;(2)3.6×201=3.6×(200+1)=3.6×200+3.6×1=720+3.6=723.6;(3)0.94×2.5﹣0.45=2.35﹣0.45=1.9;(4)4×0.8×12.5×2.5=(4×2.5)×(0.8×12.5)=10×10=100;(5)17.5÷0.25×17+13=70×17+13=1190+13=1203;(6)1.25×8.08=1.25×(8+0.08)=1.25×8+1.25×0.08=10+0.1=10.1.27.【解答】解:①2.45﹣(1.45+0.89)=2.45﹣1.45﹣0.89=1﹣0.89=0.11②1.25×1.7×0.8=1.25×0.8×1.7=1×1.7=1.7③5.3×0.82﹣0.82×0.3=0.82×(5.3﹣0.3)=0.82×5=4.1 ④3.6÷[12×(0.53﹣0.45)]3.6÷12÷(0.53﹣0.45)=0.3÷0.08=3.7528.【解答】解:(1)125×32×2.5=125×(4×8)×2.5=(125×8)×(4×2.5)=1000×10=10000;(2)2.6×(3.4+1.6)=2.6×5=13;(3)6.7×5.5+5.5×3.3=(6.7+3.3)×5.5=10×5.5=55;(4)36×99=36×(100﹣1)=36×100﹣36×1=3600﹣36=3564;(5)9.07﹣2.2﹣7.8=9.07﹣(2.2+7.8)=9.07﹣10=﹣0.93;(6)17.6÷4÷2.5=17.6÷(4×2.5)=17.6÷10=1.76.29.【解答】解:(1)2.5×0.27×4=2.5×4×0.27=10×0.27=2.7;(2)0.63×101=0.36×(100+1)=0.36×100+0.36×1=36+0.36=36.36;(3)0.78+0.22÷5=0.78+0.044=0.824;(4)3.7×12.5+4.3×12.5=(3.7+4.3)×12.5=8×12.5=100;(5)(0.36+5.4)÷0.6=5.76÷0.6=9.6;(6)4.5÷0.25÷1.6=4.5÷(0.25×1.6)=4.5÷0.4=11.25.30.【解答】解:(1)1.6×(2.25+10.5÷1.5)=1.6×(2.25+7)=1.6×9.25=14.8;(2)74×57+43×74=74×(57+43)=74×100=7400;(3)0.6÷[(6.1﹣4.6)×0.8]=0.6÷[1.5×0.8]=0.6÷1.2=0.5;(4)101×92﹣92=(101﹣1)×92=100×92=9200;(5)125×64 =125×8×8=1000×8=8000;(6)46.2×0.56+5.37×5.6+1×0.056=4.62×5.6+5.37×5.6+0.01×5.6=(4.62+5.37+0.01)×5.6=10×5.6=56.31.【解答】解:①1.5×102=1.5×(100+2)=1.5×100+1.5×2=150+3=153②1.25×213×0.8=1.25×0.8×213=1×213=213 ③72×0.81﹢10.4=58.32+10.4=68.72④1.25×5.6 =1.25×(8×0.7)=1.25×8×0.7=10×0.7=7⑤6.05÷0.5+10.75=12.1+10.75=22.85⑥29.6÷0.8﹣1.2×5=37﹣6=31 32.【解答】解:(1)2.69×99+2.69=2.69×(99+1)=2.69×100=269(2)1.25×2.3×0.8=1.25×0.8×2.3=1×2.3=2.3(3)3.17×5.6+4.4×3.17=3.17×(5.6+4.4)=3.17×10=31.7(4)38÷0.25÷0.4=38÷(0.25×0.4)=38÷0.1=380(5)60.125=6.5÷=6.5×8=52(6)0.225÷0.25×4=0.9×4=3.633.【解答】解:①17.54+28.35+3.46+1.55=17.54+3.46+(28.35+1.55)=21+29.9=50.9 ②32.36﹣13.43﹣(7.57+1.36)=32.36﹣13.43﹣7.57﹣1.36=32.36﹣1.36﹣(13.43+7.57)=31﹣21=1③7.2×2.745÷0.36=7.2÷0.36×2.745=20×2.745=54.9④3.85×5.6+5.4×3.85﹣3.85 =3.85×(5.6+5.4﹣1)=3.85×10=38.5⑤(3.2+0.128)÷0.8 =3.2÷0.8+0.128÷0.8=4+0.16=4.16⑥(13.3﹣8.8)×3.2÷0.36=4.5×3.2÷0.36=14.4÷0.36=4034.【解答】解:①0.75×4×0.25×4=(0.75×4)×(0.25×4)=3×1=3②6.3×10.1=6.3×(10+0.1)=6.3×10+6.3×0.1=63+0.63=63.63③15.58÷8.2﹣0.72=1.9﹣0.72=1.18 ④4.536÷0.8÷14=5.67÷14=0.40535.【解答】解:(1)7.5×2+1.25÷0.5=15+2.5=17.5;(2)98×7.5=(100﹣2)×7.5=100×7.5﹣2×7.5=750﹣15=735;(3)80÷0.25+0.75=320+0.75=320.75;(4)19×3.8+3.8=(19+1)×3.8=20×3.8=76;(5)1.25×3.4×0.8=1.25×0.8×3.4=1×3.4=3.4;(6)5.12÷0.4÷2.5=5.12÷(0.4×2.5)=5.12÷1=5.12.36.【解答】解:(1)55.04+12.8﹣3.3=67.84﹣3.3=64.54;(2)0.25×32×0.125=0.25×(4×8)×0.125=(0.25×4)×(8×0.125)=1×1=1;(3)7.8×75+75×0.2=(7.8+0.2)×75=8×75=600.37.【解答】解:(1)0.21×14÷0.5=2.94÷0.5=5.88;(2)0.25×13×4=0.25×4×13=1×13=13;(3)1.25×9.7﹣1.25×1.7=1.25×(9.7﹣1.7)=1.25×8=10;(4)16.5÷[(5.2+4.8)×1.5]=16.5÷[10×1.5]=16.5÷15=1.1;(5)(8.92﹣0.45)÷(2.5+4.5)=8.47÷7=1.21.38.【解答】解:(1)6.8×0.46+0.54=3.128+0.54=3.668;(2)5.4×2.3+5.4×7.7=5.4×(2.3+7.7)=5.4×10=54;(3)0.25×32×12.5=0.25×(4×8)×12.5=(0.25×4)×(8×12.5)=1×100=100;(4)75÷1.25÷8=75÷(1.25×8)=75÷10=7.5.39.【解答】解:①7.8﹣7.2+0.9 =0.6+0.9=1.5②0.38+0.26+3.4 =0.64+3.4=4.04③(125﹣45)×3=80×3=240④13+[(41+22)÷9]=13+[63÷9]=13+7=20⑤6.7+2.5+3.3=(6.7+3.3)+2.5=10+2.5=12.5⑥13×25×4=13×(25×4)=13×100=130040.【解答】解:(1)12.8+2.04×9.5=12.8+19.38=32.18;(2)0.15×1999+0.15=0.15×(1999+1)=0.15×2000=300;(3)0.76×6.5﹣0.76×5.5=0.76×(6.5﹣5.5)=0.76×1=0.76;(4)78÷0.25÷0.4=78÷(0.25×0.4)=78÷0.1=780.41.【解答】解:(1)4.05÷0.5+10.75 =8.1+10.75=18.85;(2)6.8×2.7+2.7×3.2 =(6.8+3.2)×2.7=10×2.7=27;(3)6.8×0.75÷0.5=5.1÷0.5=10.2;(4)70.3﹣17.48÷7.6 =70.3﹣2.3=68;(5)8.5×1.2÷3.4=10.2÷3.4=3;(6)13.75÷0.125﹣2.7=110﹣2.7=107.3.42.【解答】解:(1)0.75×18÷0.15=13.5÷0.15=90;(2)6.15÷0.125÷0.8=6.15÷(0.125×0.8)=6.15÷0.1=61.5;(3)4.55÷0.28﹣0.47=16.25﹣0.47=15.78;(4)1.7×2.5×0.08=1.7×(2.5×0.08)=1.7×0.2=0.34;(5)1.89×11﹣1.89=1.89×(11﹣1)=1.89×10=18.9;(6)3.6×0.35+6.4×0.35=(3.6+6.4)×0.35=10×0.35=3.5.43.【解答】解:(1)3.4+6.6÷0.3=3.4+22=25.4;(2)25×1.25×0.04×0.8=(25×0.04)×(1.25×0.8)=1×1=1;(3)99×0.73+7.3×0.1=99×0.73+0.73×1=(99+1)×0.73=100×0.73=73;(4)96.5÷1.25÷0.8=96.5÷(1.25×0.8)=96.5÷1=96.5.44.【解答】解:(1)82.4﹣12.4×5=82.4﹣62=20.4;(2)18.5﹣3.21﹣4.79=18.5﹣(3.21+4.79)=18.5﹣8=10.5;(3)8.4+3.8+1.6+6.2=8.4+1.6+3.8+6.2=(8.4+1.6)+(3.8+6.2)=10+10=20;(4)0.25×17.3×0.4 =0.25×0.4×17.3 =0.1×17.3=1.73;(5)7.2×(10+0.1)=7.2×10+7.2×0.1=72+0.72=72.72;(3)3.54×0.29﹣0.29×2.54=(3.54﹣2.54)×0.29=1×0.29=0.29.45.【解答】解:(1)0.125×32=0.125×(8×4)=(0.125×8)×4=1×4=4;(2)8.8÷0.25÷4=8.8÷(0.25×4)=8.8÷1=8.8;(3)56.5×99+56.5=56.5×(99+1)=56.5×100=5650;(4)0.78×101=0.78×(100+1)=0.78×100+0.78×1=78+0.78=78.78;(5)9.9﹣2.07÷2.3=9.9﹣0.9=9;(6)12.75÷[14.6﹣(1.3+8.2)]=12.75÷[14.6﹣9.5]=12.75÷5.1=2.5.46.【解答】解:(1)60.8﹣36÷3.6=60.8﹣10=50.8;(2)12.5×7.2×0.8=12.5×0.8×7.2=10×7.2=72;(3)99×78.5+78.5=(99+1)×78.5=100×78.5=7850;(4)24.6﹣8.9﹣1.1=24.6﹣(8.9+1.1)=24.6﹣10=14.6;(5)0.9+9.9+99.9+999.9=(0.1+0.1+0.1+0.6)+9.9+99.9+999.9=(0.1+9.9)+(0.1+99.9)+(0.1+999.9)+0.6=10+100+1000+0.6=1110.6;(6)695÷25÷4=695÷(25×4)=695÷100=6.95.47.【解答】解:(1)5.8+6.3÷9×0.5=5.8+0.7×0.5=5.8+0.35=6.15;(2)1.25×0.8÷1.25×0.8=(1.25÷1.25)×(0.8×0.8)=1×0.64=0.64;(3)1.92÷0.12﹣2.7=16﹣2.7=13.3;(4)2.65×1.7+1.35×1.7﹣1.7=(2.65+1.35﹣1)×1.7=3×1.7=5.1;(5)138÷0.25÷4=138÷(0.25×4)=138÷1=138;(6)1.25×2.5×3.2=1.25×2.5×(4×0.8)=(1.25×0.8)×(2.5×4)=1×10=10.48.【解答】解:(1)25×5+74×5+5 =(25+74+1)×5=100×5=500(2)6.74+12.62+24.38+3.26=(6.74+3.26)+(12.62+24.38)=10+37=47(3)87﹣2.123﹣0.877 =87﹣(2.123+0.877)=87﹣3=84(4)30.65﹣(7.65+5.4)=30.65﹣7.65﹣5.4=23﹣5.4=17.6(5)(40+8)×125=40×125+8×125=6000+1000=7000(6)32×38+32×62=32×(38+62)=32×100=320049.【解答】解:(1)65×102=65×(100+2)=65×100+65×2=6500+130=6630(2)8.23﹣(2.67+3.23)=8.23﹣2.67﹣3.23 =(8.23﹣3.23)﹣2.67=5﹣2.67=2.33(3)32×16+14×32=32×(16+14)=32×30=960(4)8.46+7.26+1.51+2.84=(8.46+1.51)+(7.26+2.84)=10+10.1=20.1(5)27×[(263+37)÷50]=27×[300÷50]=27×6=162(6)125×32×25=125×8×4×25=(125×8)×(4×25)=1000×100=10000050.【解答】解:(1)5.6×0.25 =(1.4×4)×0.25=1.4×(4×0.25)=1.4×1=1.4(2)0.32×0.25×12.5 =(0.8×0.4)×0.25×12.5=(0.8×12.5)×(0.4×0.25)=10×0.1=1(3)6.4÷(0.3×2+0.2)=6.4÷(0.6+0.2)=6.4÷0.8=8(4)201×6.5﹣6.5 =(201﹣1)×6.5=200×6.5=1300(5)102×4.5 =(100+2)×4.5=100×4.5+2×4.5=450+9=459(6)2.2×0.25+2.8×0.25=(2.2+2.8)×0.25=5×0.25=1.25。
六年级小数除法练习题
六年级小数除法练习题姓名:一、计算题1.2÷0.2=0÷1.25=1.8÷3=.24÷2=0.35÷10=0.54÷6=3.6÷3=.7÷0.36=8.4÷1.7=10.75÷12.5=104.78÷26=18×4932532=××=0×1×=475674二、解方程321X+ X=18x- 0.8x = 16X-7=3X÷=1234三、应用题1、一个长方形花坛,长是42米,宽是长的,这个花坛的面积是多少平方米?、一本书36页,第一天看了,第二天应从第几页看起?3、一条路100米,第一天修了这条路的,第二天修了余下的,还剩这条路的几分之几没有修?12352912134、某车间要生产电视机1560台,已经生产了8天,每天生产120台,剩下的每天生产150台,还要几天才能完成任务?5、甲乙两地相距405千米,一辆汽车从甲地开往乙地,4小时行驶了180千米。
照这样的速度,再行驶多少小时,这辆汽车就可以到达乙地?六年级小数乘除法计算题练习 2013.9班级姓名一、计算题1、直接写出得数。
0.4×2.5=0.8× 1.25=0.×3.=0.×0.3=10 ×0.07=0.× 1.=0.0× =0.9× 0.=0.× 0.2= 0.2×0.4=2.5×0.4=0.9-0.52=8÷10 =0.9×0.8=1÷0.5=0.16.5×10=3.215×100=0.6×0.=12.5×8=0.16×=2、用竖式计算0.396÷1.2=0.025×14=3.06×36=16.9÷0.13=0.1× =0.02×0.1= 1.2×0.3= .2+1.8= 100-35.22=.3×4=.4×5=0.22×4=3.25×0= 3.99×1=0×3.52=12.5×8=10-1.8-7.2=0.43+3.57= .5×4×12=7.5x-3x = a+3a+7a= 1.05×100= 0.96÷3= 1.47÷0.7= .4÷6=0.56×100= .78×100= ÷0.=0.8×10= .08×100= 1.1×0.=3×0.9=2.5×0.4=.6×0.4= 0×0.04=80×0.= 1.1×9=1.78+2.= .6÷0.= .46+0.756÷0.36=0.75÷3.3=.6×13= 0.18×15= 0.04×0.12=3.84×2.6≈1.55÷3.9=3.7×0.01=46.1÷59=0.9÷3.2=÷5=3、脱式计算2.5×7.1× 16.12×99+16.125.2×0.9+0.97.28×99+7.28.3×50×0.264-2.64×0.526×15.7+15.7×24×8.8-4.8×0.59.5×101.× 17.-.×.12.5×0.4×2.5×83.94+34.3×0.2.08×÷4.8二、解方程:7.5x-3x=12.4X=26.4x+6x=63.6六年级分数除法计算练习题姓名____________ 班级___________ 小组___________ 成绩 _____________一、一个数除以整数。
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《小数除法》问题训练--评价单(序号)
班级: 组名: 姓名: 创作:黄玉兰审核:五年级数学组
1、计算下面各题。
(1)68.8÷4=(2)85.44÷16=(3)67.5÷15=
(4)289.9÷18=(5)101.7÷9=(6)243.2÷64=
(7)16.8÷28=(8)15.6÷24=(9)0.138÷15=
(10)1.35÷27=(11)0.416÷32=(12)3.64÷52=
(13)91.2÷3.8=(14)0.756÷0.18=(15)51.3÷0.27=
2、下面各题,商保留一位小数。
(25)14.36÷2.7≈(26)8.33÷6.2≈(27)1.7÷0.03≈
3、下面各题,商保留二位小数。
(28)32÷42≈(29)1.25÷1.2≈(30)2.41÷0.7≈
二、解决问题
1、一个正方形的周长是9.48米,它的边长是多少米?
2、小汽车8分钟行12.8千米,公共汽车12分钟行14.4千米,谁的速度较快?
快多少?
3、小红、小表、小兰、小花、小梅一起去开心乐园玩,车费用去了9.5元,门票费32.5元。
平均每人用去多少元?
4、解放军某部急行军3小时行了18.8千米,平均每小时行多少千米?(得数保留两位小数)
5.、双休日爸爸带小勇去登山。
从山底到山顶全程有7.2千米,他们上山用了3小时,下山用了2小时。
上山、下山的速度各是多少?你还能提出其他数学问题吗?
6.汽车每行驶5小时要用汽油0.8千克。
如果汽车现有汽油50千克,要行驶325千米,还需加油吗?
自我评价:同伴评价学科长评价:组长评价:教师评价:。