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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)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。

五年级小数点乘法口算题

五年级小数点乘法口算题

五年级小数点乘法口算题1. 0.2×3 =- 解析:计算时,先算2×3 = 6,然后看因数中一共有一位小数,就从积的右边起数出一位点上小数点,所以结果是0.6。

2. 0.5×4 =- 解析:先算5×4 = 20,因数中有一位小数,从积的右边起数出一位点上小数点,结果是2.0,也就是2。

3. 1.2×2 =- 解析:12×2 = 24,因数中有一位小数,积为2.4。

4. 0.3×5 =- 解析:3×5 = 15,因数有一位小数,结果是1.5。

5. 2.5×2 =- 解析:25×2 = 50,因数有一位小数,积是5.0即5。

6. 0.4×6 =- 解析:4×6 = 24,因数有一位小数,答案为2.4。

7. 1.5×3 =- 解析:15×3 = 45,因数有一位小数,积是4.5。

8. 0.6×5 =- 解析:6×5 = 30,因数有一位小数,结果是3.0也就是3。

9. 2.1×2 =10. 0.7×4 =- 解析:7×4 = 28,因数有一位小数,答案是2.8。

11. 1.3×3 =- 解析:13×3 = 39,因数有一位小数,积是3.9。

12. 0.8×5 =- 解析:8×5 = 40,因数有一位小数,结果是4.0即4。

13. 2.3×2 =- 解析:23×2 = 46,因数有一位小数,积为4.6。

14. 0.9×4 =- 解析:9×4 = 36,因数有一位小数,答案是3.6。

15. 1.1×5 =- 解析:11×5 = 55,因数有一位小数,积是5.5。

16. 3.2×2 =- 解析:32×2 = 64,因数有一位小数,积为6.4。

小数加减法的练习题口算

小数加减法的练习题口算

小数加减法的练习题口算一、简单小数加法1. 0.3 + 0.7 =2. 1.2 +3.8 =3. 2.5 +4.5 =4. 3.6 + 6.4 =5. 0.4 + 0.6 =二、简单小数减法1. 5.62.1 =2. 8.93.4 =3. 7.24.7 =4. 9.8 6.3 =5. 6.5 1.9 =三、小数加法进位1. 4.9 + 5.7 =2. 6.8 + 7.2 =3. 8.3 +4.6 =4. 9.5 + 2.4 =5. 7.1 +6.8 =四、小数减法退位1. 9.3 4.8 =2. 8.63.9 =3. 7.4 5.7 =4. 6.2 2.5 =5. 5.8 4.2 =五、混合小数加减法1. 2.5 + 3.8 1.6 =2. 4.7 2.3 + 1.9 =3. 6.4 + 2.24.8 =4. 8.15.5 + 3.7 =5. 7.9 + 4.66.2 =六、多位小数加减法1. 12.34 + 56.78 =2. 23.45 67.89 =3. 34.56 + 78.90 =4. 45.67 89.01 =5. 56.78 + 90.12 =七、连续小数加法1. 0.1 + 0.2 + 0.3 =2. 0.4 + 0.5 + 0.6 =3. 0.7 + 0.8 + 0.9 =4. 1.1 + 1.2 + 1.3 =5. 1.4 + 1.5 + 1.6 =八、连续小数减法1. 1.0 0.9 0.8 =2. 2.0 1.9 1.8 =3. 3.0 2.9 2.8 =4. 4.0 3.9 3.8 =5. 5.0 4.9 4.8 =九、小数加法与整数混合1. 2.3 + 4 =2. 5.6 + 7 =3. 8.9 + 10 =4. 3.4 + 6 =5. 7.8 + 9 =十、小数减法与整数混合1. 92.5 =2. 83.6 =3. 74.7 =4. 6 1.8 =5. 10 5.2 =十一、复杂小数加减法混合1. 5.78 +2.34 4.56 =2. 6.893.21 + 1.23 =3. 7.65 +4.32 6.78 =4. 8.435.67 + 2.89 =5. 9.12 + 3.45 7.89 =十二、小数加减法应用题1. 小明有3.5元,他又赚了2.8元,现在他有多少元?2. 小华有8.6元,他花了4.2元,他还剩下多少元?3. 小李的体重是45.6公斤,他增加了3.4公斤,现在他的体重是多少?4. 小王的身高是1.75米,他弟弟比他矮0.12米,他弟弟的身高是多少?5. 一本书的价格是12.5元,书店打了8折,现在这本书的价格是多少?答案一、简单小数加法1. 1.02. 5.03. 7.04. 10.05. 1.0二、简单小数减法1. 3.52. 5.53. 2.54. 3.55. 4.6三、小数加法进位1. 10.62. 14.03. 12.94. 11.9四、小数减法退位1. 4.52. 4.73. 1.74. 3.75. 1.6五、混合小数加减法1. 6.72. 6.73. 3.84. 6.35. 6.3六、多位小数加减法1. 69.122. 44.443. 113.464. 43.345. 146.9七、连续小数加法1. 0.62. 1.53. 2.64. 3.6八、连续小数减法1. 0.32. 0.33. 0.34. 0.35. 0.3九、小数加法与整数混合1. 6.32. 12.63. 18.94. 9.45. 16.8十、小数减法与整数混合1. 6.52. 4.43. 2.34. 4.25. 4.8十一、复杂小数加减法混合1. 3.562. 6.03. 3.194. 6.65十二、小数加减法应用题1. 6.3元2. 4.4元3. 49.0公斤4. 1.63米5. 10.0元(打8折后的价格是10元)。

带小数点的简单的口算题

带小数点的简单的口算题

带小数点的简单的口算题篇一:五年级小数点口算题五年级小数点口算题3.4-1.4= 7.82-7.2=2.19+9.1= 10.1-0.89= 0.68+0.42= 8.1-5.1=0.728-0.24= 0.8+0.18=0.89-0.25=1-0.98= 0.048+0.52= 5×400=19.9+11.1=187÷1000=1+3.89=0.081×10= 75÷10=0.96÷0.8=0.8×7= 1.50.7×8= 10.30.9×0.3= 3.510×0.05= 0.130.7×4= 0.0512.5×8=2.30.4×50=304.1×2= 0.351-0.08=3.50×9.8= 3.90.5×0.4 =8.1÷9= 2.53.6+6.3= 0.050÷3.5= 0.9班级:9×0.5= 1.254.1×2= 0.35×7= 1.32×8=×2=5×0.6=×0.2=2.01×0=×7=0.21×100=×4=4×0.3=×4= 3.25×0=×0.1= 2.6×3=×0.2=7.5×0.1=×0.01= 1.25÷0.25=+0.39= 4.8+5.2=÷0.25=3÷4=×4= 6-0.025=×4= 3.5×0=×0.3=1×0.06=姓名:五年级数学口算练习×8= 2.6×3=×0.2=7.5×0.1= 40.9×0.3=1×0.06=9×0.5=1.25×8=0.2×0.4=8.2+1.8=100-35.22=2.5×0.4=2.4×5=0.22×4=0.9-0.52= 3.99×1=0×3.52=2.5÷5=8.4÷7=0.34÷17= 2.5÷0.5=8.4÷0.7=0.34÷0.17=30.4÷4= 1.2×6=0.72÷0.6= 2.60÷3.65= 7.821.4÷0.7= 3.65.6÷1.4= 0.484.2×3 = 3.24÷0.5=5.10.9÷0.45=9.60.01÷1= 7.53÷0.5=100÷3.89= 3.526.4÷4﹦1.54.2×3﹦ 11.29÷3= 3.2-1.68= 7.2-1.2+6.7=班级:1.8×5﹦7.22.2×6﹦8.44.5÷0.9﹦ 2.52.5×4﹦0.34.5×2= 7.8+0.22= 23.4×0.4=12.6÷1.3=0.6×0.3=÷1 =0.001÷0.1=÷0.06=5.6÷0.9=÷0.8=4.4÷0.11=×0.4=0.3÷0.01=÷0.17=0.28÷1.4=÷16=1÷0.01=÷1.5=0.81÷9=÷25=4.8÷0.16=÷1=37.2×99+37.2= ÷0.3﹦1×0.4÷1×0.4= ×0.01÷0.1=1.25÷0.5=姓名:五年级数学口算练习÷0.9﹦25×4÷0.25×4= ÷0.4﹦9÷5-1.9÷5﹦×4﹦25×3.3×0﹦÷0.1﹦37.2×99+37.2﹦-0.64-0.36﹦-0.9= 2-1.64-0.36﹦1.2÷0.04= 0.42÷7=1.25×3.3×0﹦0.9+2.01= 2.97÷100= 20-3.7-7.3=6.3+7= 2.19+9.1= 5×0.75÷1.5×0.75= 0. 65×0.2=9.8-0.98= 1-0.1×0.1=0.7+3= 1.2×0.8= 0.9×7+10.7=6.3÷0.021=1.5÷0.03=6.8-2.4÷3=5×0.7= 0.43×5=3.6÷0.9-4=3.6-0.36= 8.1-2.2=0.6÷0.3+0.5=6.8+8.6=9.4×0.2=1.8÷0.9×0.5= 2-1.08= 8.8÷0.4=(1.6+0.5)÷5=43×0.01﹦3.72×0.2= 0.7×8-0.6=99+0.1﹦ 3.2-2=6×0.125×8=1.9×4﹦8.8÷0.11= 4×1.2×0.25=0.125×8﹦1.8×40= 2.5-3.6÷1.8=2.3÷0.1﹦3.72÷4= 13-0.5-4=1.1×0.7= 1.9+5.1÷51=3.2×50=2.32-0.4=3.2×0.5= 8×5.1=12-0.05×4= 16-4.5-5.5=1.8÷0.3=南京市浦口区实验小学五年级数学上册计算能力竞赛班级_______姓名_______分数_______一、口算(14分)0.027×100= 8.8+0.12= 0.36×5= 0.75-0.5= 1.2+8=9.5÷0.95= 2.4-2.4÷1.2=0.73+0.27×10=0.15÷0.3= 1.6+3.04= 2.8÷0.7=4×3.9×0.5=0.012= 5.7÷0.3=二、竖式练习(最后一横排精确到0.1)(20×2)2.7+3.13141-48.98 9÷36 0.945÷0.03540.4÷84.7×0.203 3.25×1800 7.2÷0.4825÷0.38 1.7÷113.85×0.01450.34÷14三、能简便的要简便计算(23×2)45.55-(6.82+15.55) 34.52-17.87-12.23 4.57+3.17+3.43+5.838.54-5.99 27.38-5.34+2.62-4.66 21.63+(18.5-9.63)70÷28 2.31×1.2×0.5 12.78-(4.97-2.78)63.4÷2.5÷0.499×4.38.23+6.5-8.23+6.5 3.12+3.12×991.63+2.37÷0.32.7÷452.4×10.2 23.9-0.6×0.6-0.642.4×1.87-2.4×0.8715.32×4+4.68÷0.25 1.26÷(1.26×0.4) 28.6×101-28.6(12.6+4.8)÷0.60.8×[(5-0.68)÷1.2]0.666×0.7+0.222×0.9五年级上册数学竞赛试卷(1)一、计算,写出主要简算过程(每题4分,共16分)1.567×789789-789×5675672.7.2×14.3÷0.9÷1.33.0.64×125×2.54.如果2△3=2+3+4=9,5△4=5+6+7+8=26,那么,按此规则计算7△5=?二、填空题(每题6分,共30分)1.一种水草长得很快,每天增加一倍。

小数加减法口算题

小数加减法口算题

小数加减法口算题一、小数加法口算题1. 0.3 + 0.4 = 0.7-解析:0.3是3个0.1,0.4是4个0.1,3个0.1加上4个0.1等于7个0.1,即0.7。

2. 0.2 + 0.5 = 0.7-解析:0.2表示2个0.1,0.5表示5个0.1,它们相加就是7个0.1,结果是0.7。

3. 0.7 + 0.1 = 0.8-解析:0.7包含7个0.1,再加上1个0.1,总共就是8个0.1,也就是0.8。

4. 1.2 + 0.3 = 1.5-解析:先算小数部分,0.2 + 0.3 = 0.5,再加上整数部分1,结果是1.5。

5. 2.3 + 0.4 = 2.7-解析:同样先算小数部分3个0.1加4个0.1得7个0.1,即0.7,再加上整数部分2,得到2.7。

6. 3.1 + 0.6 = 3.7-解析:先把小数部分相加,0.1 + 0.6 = 0.7,然后加上整数部分3,结果是3.7。

7. 0.8 + 0.9 = 1.7-解析:0.8是8个0.1,0.9是9个0.1,合起来是17个0.1,也就是1.7。

8. 1.5 + 0.4 = 1.9-解析:先算0.5 + 0.4 = 0.9,再加上整数部分1,答案是1.9。

9. 2.6 + 0.2 = 2.8-解析:小数部分6个0.1加2个0.1为8个0.1,即0.8,加上整数部分2得2.8。

10. 0.7 + 1.2 = 1.9-解析:先算0.7 + 0.2 = 0.9,再加上1,结果是1.9。

二、小数减法口算题11.0.9-90.3= 0.6-解析:0.9里有9个0.1,减去3个0.1,剩下6个0.1,即0.6。

11.0.9-91.4= 0.3-解析:8个0.1减去5个0.1,还剩3个0.1,答案是0.3。

11.0.9-92.1= 0.6-解析:7个0.1减去1个0.1,剩下6个0.1,是0.6。

11.0.9-93.2= 1.2-解析:先算小数部分,0.5 - 0.3 = 0.2,再加上整数部分1,结果是1.2。

小数除法口算题

小数除法口算题

小数除法口算题
在日常生活中,数学一直伴随着我们。

小数除法是数学中的一个重要知识点,
掌握小数除法口算技巧可以帮助我们更快更准确地计算数值。

下面,我们一起来看几个小数除法口算题目。

题目一
计算:3.45 ÷ 0.15
解:
首先将除号变成乘号,然后把除数移动到小数点后面得到整数,再计算.
3.45 ÷ 0.15 = 3.45 × 100 ÷ 15 = 345 ÷ 15 = 23
题目二
计算:7.2 ÷ 0.6
解:
同样的方法,把小数点后的数移动到整数,然后计算.
7.2 ÷ 0.6 = 7.2 × 10 ÷ 6 = 72 ÷ 6 = 12
题目三
计算:5.76 ÷ 2.4
解:
继续按照上述方法计算.
5.76 ÷ 2.4 = 5.76 ÷ 2.4 = 576 ÷ 24 = 24
通过这些小数口算题目,我们可以发现,掌握小数除法口算技巧并不难,只需
按照一定的步骤进行计算,就能够迅速得出结果。

希望大家在日常生活中多多练习,提升自己的口算水平。

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