小数乘除法计算题
小数乘除法竖式计算专项练习题(每日一份,共14份)
2.81×8.8= 2.14×6.7= 4.62×7.9= 8.35×7.5=二、小数乘以一位数1.74×3= 9.02×4= 6.4×2= 5.2×5=三、小数乘以两位数8.7×12= 0.6×12= 0.5×41= 3.61×23=四、一位小数乘以一位小数9.6×5.4= 2.1×6.7= 4.2×1.6= 6.3×2.4=五、两位小数乘以两位小数9.59×4.94= 5.42×4.35= 8.23×8.49= 5.67×0.9=0.429×1.13= 0.219×6.79= 0.964×2.5= 0.945×0.35=七、小数除以一位整数7.2÷2= 19.8÷6= 13.53÷3= 64.4÷7=八、小数除以两位整数79.9÷47= 73.8÷41= 2.3÷23= 75.2÷47=九、小数除以小数5.28÷1.6= 13.32÷1.8= 11.6÷2.9= 10.8÷2.7=2.38×8.7= 6.43×3.8= 2.52×4.4= 8.51×3.8=二、小数乘以一位数1.48×3= 6.4×5= 8.89×3= 3.81×3=三、小数乘以两位数7.3×20= 4.07×48= 6.8×35= 3.04×17=四、一位小数乘以一位小数5.6×2.8= 4.2×9.5= 5.1×5.8= 2.3×7.8=五、两位小数乘以两位小数3.74×6.98= 2.28×1.44= 0.34×4.32= 8.82×0.78=0.064×7.39= 0.206×3.67= 0.752×5.17= 0.603×4.93=七、小数除以一位整数22.5÷6= 30.88÷4= 42.42÷6= 50.47÷7=八、小数除以两位整数3.2÷32= 13.8÷46= 32.8÷41= 28.5÷38=九、小数除以小数1.02÷0.3= 28.48÷3.2= 18.9÷2.1= 11.16÷1.8=3.77×8.7= 6.73×3.3= 5.6×9.8= 3.98×3.1=二、小数乘以一位数4.3×3=5.46×3= 3.5×2= 2.48×6=三、小数乘以两位数1.7×46= 3.1×24= 8.7×39=2.4×27=四、一位小数乘以一位小数8.6×1.3= 9.6×4.6= 0.5×7.6= 1.2×4.8=五、两位小数乘以两位小数5.45×7.63= 8.53×6.6= 0.52×6.76= 0.08×2.3=0.229×7.29= 0.698×8.33= 0.423×8.82= 0.149×1.95=七、小数除以一位整数9.56÷2= 22.56÷6= 31.2÷6= 22.32÷4=八、小数除以两位整数17.6÷44= 24.5÷49= 1.8÷12= 59.5÷35=九、小数除以小数5.7÷1.9= 22.32÷2.4= 10.64÷1.4= 13.52÷2.6=0.05×7.9= 6.74×7.4= 8.7×9.4= 4.83×6.4=二、小数乘以一位数0.21×3= 4.46×5= 5.75×3= 8.77×3=三、小数乘以两位数5.8×47= 2.02×23= 4.63×14= 5.7×40=四、一位小数乘以一位小数4.7×6.6= 8.2×2.5= 6.2×7.7= 4.7×7.7=五、两位小数乘以两位小数2.87×5.53= 8.66×7.56= 8.55×1.56= 6.14×4.51=0.331×6.39= 0.906×6.01= 0.023×0.47= 0.941×1.25=七、小数除以一位整数60.4÷8= 20.4÷4= 53.6÷8= 32.24÷4=八、小数除以两位整数19.74÷21= 28.08÷36= 15.68÷28= 39.2÷28=九、小数除以小数13.44÷2.8= 12.6÷1.4= 15.6÷2.6= 6.8÷1.7=3.22×8.1= 2.41×3.7= 2.92×4.6= 4.73×5.7=二、小数乘以一位数8.7×8= 6.52×6= 6.5×3= 9.8×6=三、小数乘以两位数0.5×18= 0.25×19= 4.2×24= 7.8×13=四、一位小数乘以一位小数3.1×9.6= 1.4×3.7= 6.5×4.6= 0.2×3.2=五、两位小数乘以两位小数8.24×3.48= 9.89×4.28= 8.22×6.25= 6.61×3.11=0.889×6.34= 0.064×1.15= 0.973×2.64= 0.82×8.63=七、小数除以一位整数14.1÷3= 32.8÷4= 16.86÷3= 19.2÷3=八、小数除以两位整数29.4÷42= 57.81÷47= 3.24÷36= 44.8÷28=九、小数除以小数12.96÷2.4= 2.75÷0.5= 9.8÷1.4= 9.9÷1.1=7.57×4.6= 3.66×3.6= 9.3×1.4= 8.33×0.7=二、小数乘以一位数5.48×8=6.6×2=7.03×2=8.8×2=三、小数乘以两位数2.6×37= 7.5×19= 7.97×46= 6.3×40=四、一位小数乘以一位小数5.3×8.5= 1.4×0.3= 3.6×5.4= 2.2×4.6=五、两位小数乘以两位小数4.95×6.18= 3.39×2.82= 3.5×8.69= 8.09×8.5=0.134×1.51= 0.419×2.59= 0.204×7.53= 0.143×8.18=七、小数除以一位整数36.75÷5= 20.75÷5= 29.6÷8= 24.96÷4=八、小数除以两位整数44.8÷32= 62.9÷37= 40.7÷37= 28.56÷28=九、小数除以小数8.84÷2.6= 1.8÷0.3= 21.6÷3.6= 6.8÷1.7=3.42×8.1= 1.68×0.2= 6.17×0.5= 8.85×3.9=二、小数乘以一位数6.19×7= 2.8×4= 6.3×6= 4.15×5=三、小数乘以两位数2.7×11= 1.22×49= 2.78×36= 1.13×28=四、一位小数乘以一位小数0.6×1.2= 1.4×5.2= 5.6×2.9= 1.6×7.9=五、两位小数乘以两位小数6.78×7.59= 1.04×2.38= 0.42×8.46= 5.04×3.31=0.731×8.16= 0.204×1.86= 0.16×6.95= 0.225×1.11=七、小数除以一位整数70.2÷9= 44.8÷7= 18.18÷2= 51.6÷6=八、小数除以两位整数11.4÷19= 43.4÷31= 20.3÷29= 9.6÷24=九、小数除以小数19.2÷2.4= 10.32÷2.4= 7.56÷1.2= 17.68÷2.6=8.31×3.2= 8.1×9.3= 6.42×3.2= 0.41×3.5=二、小数乘以一位数5.92×6= 4.95×3= 8.2×2= 3.18×3=三、小数乘以两位数7.2×10= 4.3×22= 2.05×21= 7.2×20=四、一位小数乘以一位小数4.8×3.3= 4.3×5.1= 3.6×5.3= 3.4×1.5=五、两位小数乘以两位小数3.12×1.88= 0.52×3.66= 3.87×6.77= 2.07×5.56=0.341×4.41= 0.524×3.28= 0.556×7.44= 0.454×8.58=七、小数除以一位整数15.6÷6= 49.5÷9= 51.1÷7= 31.8÷6=八、小数除以两位整数24.7÷13= 37.4÷22= 22.05÷35= 12.46÷14=九、小数除以小数3.56÷0.4= 7.02÷1.8= 3.15÷0.7= 9.9÷1.1=7.06×2.8= 6.59×6.7= 2.47×6.2= 8.76×4.5=二、小数乘以一位数2.7×5= 9.54×8= 7.34×5= 8.7×6=三、小数乘以两位数6.26×44= 6.2×22=7.4×11= 3.71×27=四、一位小数乘以一位小数4.5×4.2=5.7×8.1= 2.7×6.6= 8.8×9.8=五、两位小数乘以两位小数7.71×6.27= 4.5×8.47= 7.1×6.02= 1.53×7.11=0.965×4.46= 0.082×5.39= 0.671×2.02= 0.853×2.37=七、小数除以一位整数74.48÷8= 16.5÷3= 57.92÷8= 43.8÷6=八、小数除以两位整数20.8÷16= 13.8÷46= 33.83÷17= 5.89÷19=九、小数除以小数12.15÷2.7= 4.32÷1.2= 18.9÷2.7= 0.99÷0.3=4.58×3.7= 3.61×5.4= 0.39×1.8= 4.7×8.7=二、小数乘以一位数1.55×7= 4.61×3= 5.8×3= 5.95×7=三、小数乘以两位数7.46×46= 8.56×26= 7.53×38= 7.9×38=四、一位小数乘以一位小数7.5×6.4= 9.3×3.9= 6.3×4.4= 2.3×0.3=五、两位小数乘以两位小数7.91×2.42= 3.79×5.57= 1.31×8.75= 5.27×8.84=0.027×2.68= 0.266×6.34= 0.704×3.09= 0.554×5.53=七、小数除以一位整数53.28÷8= 20.72÷4= 28.5÷3= 20.88÷4=八、小数除以两位整数22.8÷19= 79.9÷47= 40.8÷24= 35.2÷22=九、小数除以小数13.86÷2.1= 13.8÷2.3= 2.94÷0.6= 20.7÷2.3=7.8×5.2= 9.94×8.6= 2.97×1.4= 1.76×6.7=二、小数乘以一位数4.75×3= 2.5×9= 4.3×7= 8.36×5=三、小数乘以两位数8.63×36= 8.79×27= 3.47×35= 3.7×28=四、一位小数乘以一位小数5.2×6.1= 4.6×8.8= 2.6×0.5= 8.6×5.8=五、两位小数乘以两位小数3.44×9.99= 1.25×1.45= 7.28×4.9= 1.03×6.71=0.246×9.92= 0.824×2.78= 0.499×8.02= 0.829×3.06=七、小数除以一位整数30.25÷5= 31.5÷7= 39.6÷9= 15.2÷4=八、小数除以两位整数47.6÷28= 19.68÷16= 17.1÷19= 16.8÷16=九、小数除以小数31.92÷3.8= 17.5÷2.5= 5.72÷1.3= 10.58÷2.3=9.05×2.2= 7.44×8.1= 7.99×5.3= 3.39×6.9=二、小数乘以一位数4.3×9= 0.6×8= 7.35×3= 3.4×3=三、小数乘以两位数2.9×26= 8.8×31= 8.3×13= 1.89×29=四、一位小数乘以一位小数8.6×3.6= 2.7×0.5= 9.2×3.6= 7.8×9.9=五、两位小数乘以两位小数8.98×2.17= 4.75×7.1= 6.82×2.36= 8.5×5.15=0.267×5.19= 0.117×4.26= 0.162×1.53= 0.908×2.32=七、小数除以一位整数11.9÷5= 50.82÷7= 58.1÷7= 51.92÷8=八、小数除以两位整数43.4÷31= 93.1÷49= 20.3÷29= 49.84÷28=九、小数除以小数29.76÷3.1= 14.7÷3.5= 14.4÷2.4= 11.84÷3.2=6.17×2.8= 2.79×5.9= 0.71×7.2= 6.81×3.1=二、小数乘以一位数8.78×9= 7.81×8= 1.4×4= 2.81×6=三、小数乘以两位数2.2×43= 4.44×35= 8.5×46= 1.6×31=四、一位小数乘以一位小数9.3×2.5= 3.2×8.5= 2.1×4.7= 6.9×8.4=五、两位小数乘以两位小数3.02×9.3= 2.26×1.43= 7.54×4.2= 8.1×0.47=0.014×5.21= 0.256×0.56= 0.676×2.87= 0.426×4.53=七、小数除以一位整数31.5÷7= 17.7÷3= 25.2÷7= 48.3÷7=八、小数除以两位整数38.72÷32= 38.4÷32= 29.9÷23= 22.8÷38=九、小数除以小数11.7÷1.5= 5.2÷1.3= 3.42÷0.6= 9.43÷2.3=6.49×5.4= 1.45×6.6= 4.58×9.8= 4.39×4.2=二、小数乘以一位数2.3×6= 2.88×3= 1.52×4=3.41×9=三、小数乘以两位数6.6×20= 4.7×20= 1.5×37= 0.1×42=四、一位小数乘以一位小数1.3×3.9= 8.5×1.3= 3.3×5.9= 6.4×2.5=五、两位小数乘以两位小数7.46×8.27= 7.33×7.99= 9.26×3.34= 4.79×2.24=0.225×2.81= 0.687×7.15= 0.214×7.71= 0.238×8.67=七、小数除以一位整数59.85÷7= 44.7÷6= 42.56÷8= 24.4÷4=八、小数除以两位整数42.5÷25= 14.8÷37= 32.9÷47= 23.4÷39=九、小数除以小数26.1÷2.9= 10.56÷1.6= 7.02÷1.8= 1.46÷0.2=3.68×7.8= 9.64×8.3= 6.88×7.6= 2.16×0.4=二、小数乘以一位数5.93×3= 1.84×3= 7.8×8=6.5×6=三、小数乘以两位数6.3×49= 1.5×44= 1.8×28= 2.65×14=四、一位小数乘以一位小数4.2×8.4= 7.3×7.7= 1.2×8.3= 6.1×6.7=五、两位小数乘以两位小数4.69×9.03= 0.53×3.53=5.78×5.54= 3.22×8.66=0.995×2.4= 0.03×1.1= 0.967×8.87= 0.924×2.12=七、小数除以一位整数32.4÷9= 26.96÷4= 61.39÷7= 9.9÷3=八、小数除以两位整数47.6÷28= 19.6÷28= 46.5÷31= 20.8÷16=九、小数除以小数14.4÷1.6= 12.5÷2.5= 2.1÷0.3= 28.05÷3.3=。
五年级小数乘除法口算练习题(5篇范文)
五年级小数乘除法口算练习题(5篇范文)第一篇:五年级小数乘除法口算练习题小数乘除法口算练习1.5×4=2.5×4=0.13× 4=5.4÷10=0.18×0.3=4.2×1000=0.45÷0.15=3.6÷0.1=8.5×100=8.5÷ 1.7=3.2÷100=1.2÷0.3 =0.49÷7=0.04×25=0.096÷0.03=84÷4.2= 1000×0.756= 0.5×100= 0÷0.25= 1÷0.01=1.25×8=3.8×2=7.2÷0.9=9.3÷0.3= 4÷0.4= 0.45÷0.5= 0.2÷0.01= 0.92.1×0.3=7×0.08=1.87×0=0.2×0.5= 60×0.5= 0.05×1.6=0.5×1.1=0.8×0.5=1.25×4= 4×0.25= 0.4÷8= 1.8×0.5= 8÷0.5= 0.32÷16=2.5÷10= 6.3÷2.1= 0.924= 80÷1.6= 6.2+1.7= 0.56÷14= 1.66.3÷9= 0.15×8= 7.2÷0.6= 4.2÷1.4=3.9÷3.9= 0÷6.81= 1.47×0.4= 0.4×0.25=0.8×7= 1.5×7= 1.32×8=0.7×8=10.3×2=5×0.6=3.21×23= 3.21×2.3=32.1×2.3=32.1×0.23= 3.21×0.23=321×0.023=0.9×0.3=3.5×0.2=2.01×0=10×0.05=0.13×7=0.21×100=0.7×4=0.05×4=4×0.3=12.5×8= 2.3×4= 3.25×0=0.4×50=30×0.1=2.6×3=4.1×2=0.35×0.2=7.5×0.1=0.9×0.3=1×0.06=9×0.5=1.25×8=1-0.73=0.6×8=2.05×100=0.04×0.3=0.4×0.25=1.25×8=1.6×5= 0.9+1.4=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=1.6×0.2=×6=0.24×5= 6÷0.12= ÷÷0.8=7.2÷6=4.4÷4=3.6÷3=5.2÷2=1.5×3=1.2×0.4=3.6÷3=2.7÷3=0.12÷3=0.45÷9=3.6÷6=2.7÷2=1.2÷3 =0.45÷4=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=2.6÷1.3=0.6×0.3=0÷3.65=7.82÷1 =1.4÷0.7=3.6÷0.06=5.6÷0.9=0.48÷0.8=4.4÷0.11=4.2×3 =0.3÷0.01=40.9÷0.45=9.63÷4=8.13.6+6.3=0.051-0.08= 3.53.9+0.39=4.86.4÷4﹦ 1.52.5×2= 0.5×10= 0.6×8= 2.1×2=2.8×10= 0.7×0.8= 0.04×20= 5.6+0.4=4.7+2.3= 4.5×2= 6.9-2.5= 7.2×0.8= 6×3.4= 0.62-0.32= 1.4×0.5= 0.75×100=0.02×0.5= 3.6×0.3= 0.75÷0.25= 0.125×8=4.8÷0.3= 0.86÷2=0.56÷28= 0.36÷0.4= 0.64÷0.8= 0.7×9=3.6÷24= 0.8×1.1= 7.2+12.8= 46.7-12.8÷4=5.2÷13=12.5÷5= 1.64+4.1=10÷20= 3.08×0.01= 4.95×1000= 6.9×0.1= 0.4×0.5=2.4÷0.8= 10.8÷9= 9.6÷0.8= 0.108÷2=4.95÷0.9= 9.65÷0.1= 0.325×100= 2.5×8=0.56÷0.7= 0.125×4= 3.28×0.1= 3.9÷0.7.2×0.1= 0.01×0.1= 0.25×0.4= 1.6÷0.8=1÷2.5= 1.25×0.8= 3.2÷0.04= 0÷1.7=0.22×102= 9.6÷0.8= 5×0.24= 4.5-3.9÷0.13 16.5÷0.5= 5×0.12= 24×0.5=4.8×0.5= 2.8+7.8÷0.01= 5.4÷0.6= 3.2÷5= 7×0.62=0.56÷0.8= 7.4- 2.8= 0.18÷0.2= 0.16÷8=4.5×0.02= 8+7.2= 1.2×30= 0.012×0.2=7.3×0.3= 0÷6= 3.6÷0.12= 7.8÷0.6=2÷5= 4.510.5×0.4= 7.3+0.27= 8×0.125= 0.54÷0.6=0.61+0.39= 0.56÷28= 10÷20= 4.08÷0.4= ÷0.5=5.1÷0.17=÷16=1÷0.01 =÷9=2.5×4=×4=3.5×0=×0.01=1.25÷0.25=+5.2=0.5×0.4 =÷0.3﹦4.2×3﹦6.3÷7= 5.6×100=3.8= 24÷15= 8.65×10= 0.35×0.6=13=0.05= 4.2= 0.84÷2.1= 5÷0.25=+5= 0.3÷0.6= 0.96÷0.2=10-9.4= 0.8×0.11= 7.2+12.8= 5.6÷0.01= 2.3×100= 0.75×100= 0.108÷2= 10.8÷9= 7.8÷0.01= 5.4÷0.6= 3÷5= 7×0.62= 12÷0.5= 5.2×0.4= 12.2÷0.2= 5.6÷100= 0.41+3.7= 0.02×0.5= 7.2-0.8= 1.4×0.5= 84÷0.21= 0.75÷0.25= 2.5×16= 0.108÷2= 1.75+32.5= 16-5.07= 5.2÷13= 1.64÷41= 1.02×0.2= 0.26×0.3= 8.4×0.02= 1.2×6= 0.8×0.05= 12.6÷0.03= 8.71÷0.1= 21÷0.21= 0.8×0.13= 0.34÷17= 8.08÷0.4= 0.5×2.2= 1.24×4= 3.27+0.63= 5.02×0.3= 0.3×0.5= 5.6÷7= 72÷ 7.2= 0.7÷0.35=0.7÷1.40.48÷0.04= 1.25÷2.5= 5.5+5.5= 16.8÷8=0.54+2.2= 3.51.5×0.6= 0.32÷0.8= 12.25÷0.5= 73.5×0.46.5+52.5= 0.45×102= 1.25×88= 2.64+8×1.25= 7÷3.5= 4.2÷0.7÷6= 0.4×8.6×25=0.27÷0.3= 2.5×101= 0.65×101-0.65= 2.6×7÷2.6×7=0.02×0.5= 3.6×0.3= 6.3÷7= 5.6×100=7.8÷0.01= 5.4÷0.6= 1.5×0.6= 0.32÷0.8= 12.25÷0.5= 73.5×0.1=2.5×2= 0.5×10= 0.6×8= 2.1×2=0.61+0.39= 0.56÷28= 10÷20= 4.08÷0.4= 1.2×0.3 = 6.6÷1.1 = 4.9÷7= 0÷0.48=-0.05= 2÷0.02= 0.25×40= 1=3.85+1.54=3.2÷5= 7×0.62=第二篇:五年级上册数学小数乘除法口算练习题小数乘除法口算练习班级姓名1.5×4=2.5×4= 0.13× 4= 5.4÷10= 0.18×0.3= 4.2×1000=3.2÷100= 84÷4.2= 1.25×8= 4÷0.4= 7×0.08= 1.870.05×1.6= 0.54×0.25= 0.42.5÷10= 6.30.56÷14= 1.64.2÷1.4= 3.9 0.45÷0.15= 1.2÷0.3 = 1000×0.756= 3.8×2= 0.45÷0.5= ×0= 0.24×1.1= 0.8÷8= 1.8÷2.1= 0.92÷0.8= 6.3÷3.9= 03.6÷0.1= 0.49÷7= 0 0.5×100= 7.2÷0.9= 0.2÷0.01= 0.9×5= 0.2×0.5= 6×0.5= 8÷4= 80÷9= 0.15÷6.81= 8.5×100=.04×25= 0÷0.25= 1.6×0.2= ×6= 2.1×0.5= 60÷0.12= 1.25÷0.5= 0.32÷1.6= 6.2×8= 7.21.47×0.4= 0.48.5÷ 1.7= 0.096÷0.03= 1÷0.01= 9.3÷0.3= ×0.3= ×0.5= ×4= ÷16= +1.7= ÷0.6= ×0.25=第三篇:五年级上册数学小数乘除法口算练习题/ 1小数乘除法口算练习姓名1.5×4=2.5×4= 0.13× 4= 5.4÷10= 0.18×0.3= 4.2×1000=3.2÷100= 84÷4.2= 1.25×8= 4÷0.4= 7×0.08= 1.870.05×1.6= 0.54×0.25= 0.42.5÷10= 6.30.56÷14= 1.60.45÷0.15= 1.2÷0.3 = 1000×0.756= 3.8×2= 0.45÷0.5= ×0= 0.24×1.1= 0.8÷8= 1.8÷2.1= 0.92÷0.8= 6.33.6÷0.1= 0.49÷7= 0 0.5×100= 7.2÷0.9= 0.2÷0.01= 0.9×5= 0.2×0.5= 6×0.5= 8÷4= 80÷9= 0.158.5×100=.04×25= 0÷0.25= 1.6×0.2= ×6= 2.1×0.5= 60÷0.12= 1.25÷0.5= 0.32÷1.6= 6.2×8= 7.28.5÷ 1.7= 0.096÷0.03= 1÷0.01= 9.3÷0.3= ×0.3= ×0.5= ×4= ÷16= +1.7= ÷0.6=第四篇:五年级数学小数除法口算练习2.4÷0.85.4÷100.45÷0.153.6÷0.13.2÷1008.5÷ 1.71.2÷0.30.49÷0.7 0.096÷0.0384÷4.20÷0.251÷0.017.2÷0.99.3÷0.34÷0.40.45÷0.5 0.2÷0.011.4÷0.51.55÷0.53.15÷0.71.86÷0.21.04÷0.80.38÷0.11.36÷0.2 1.16÷0.40.12÷0.60.27÷0.90.48÷0.28.73÷0.90.72÷0.30.46÷0.10.22÷0.2 3.45÷0.54.62÷0.61.92÷0.40.9÷0.5.11÷0.70.35÷0.13.92÷0.84.32÷0.9 0.24÷0.83.15÷0.70.98÷0.71.8÷0.61.76÷0.42.64÷0.47.56÷0.90.125÷5 0.24÷0.20.4÷0.010.57÷190.7÷0.010.9÷0.010.9÷0.15 0.96÷0.03 0.96÷0.3 0.96÷31.08÷0.41.1÷0.51.28÷3.21.47÷0.7 1.55÷3.9 1.84÷0.2 1÷0.5 10.1÷3.310.75÷1.25 10÷2.510÷25100÷1.2512.3÷0.03 2.4÷0.22.4÷2 12÷0.3120÷0.24123÷1.23128÷0.415.4÷0.4 15÷0.0615÷1.516.2÷0.06 19.6÷219.6÷419.76÷5.22.17÷0.72.7÷7.52.87÷0.720.8÷0.221÷1.43.2÷0.043.2÷1.624÷0.2424÷2.436÷0.636÷3.639÷0.0034.2÷0.14.8÷0.64.8÷64÷0.841.8÷0.2492÷0.45.05÷0.55.2÷0.55.22÷0.29 5.98÷0.23 54.5÷0.9 54÷0.126.3÷217.5÷27.5÷57.56÷0.367.8÷0.038.4÷0.84 8.4÷4.28.6÷0.0028.6÷0.439.6÷0.39.6÷0.6 = 9.6÷3.29.6÷30.48÷64.6÷2314×0.56.8÷45.2÷1312.5÷50.12×58÷0.56.3÷2.10.92÷46÷1.20.4÷884÷0.040.49÷0.76.3÷3.196÷0.61.8×0.50.05×4 013.2÷633.5÷52.5×40.13× 45.4÷100.18×0.38.5÷ 1.73.2÷1001.2÷0.30.49÷70.5×1000÷0.251÷0.011.25×84÷0.40.45÷0.50.2÷0.01 0.9×60.2×0.5 60×0.50.05×1.6 0.5×1.10.4÷8 1.8×0.5 8÷0.5 0.32÷166.2+1.7 0.56÷14 1.6÷0.8 6.3÷9 1.2×50.7×0.01 2.5×0.4 1.25×8 2.5÷0.5 6.45÷0.01 0.36÷0.03 0.08÷0.01 0.75÷0.52.6÷2 9.6÷4.8 1.5÷216.9×0.3 2.37+6.3 2.37+3.72.5×1.25 2.3×0.15 4.39×10 0.1×4.39 0.7×23 13.95÷3.113÷4133÷.0.715.1÷0.05 ÷0.13 16÷1.618.63÷0.03 18.72÷3.6 2.2÷0.112.5÷0.52.5÷0.72.7÷4 22.8÷3246.4÷13 25.8÷626÷0.13 81÷796÷1.232÷0.436÷0.18 4.2÷3.5329÷64.5÷0.05 4.6÷0.023 42÷0.345÷0.546÷0.2348÷0.6 5.4÷65.5÷0.555.6÷77.4÷0.02 6.6÷0.03 6.6÷0.66 64.32÷1665÷0.05 7÷0.2572.8÷0.878÷0.0678÷0.6 8.6÷28.8÷2.28÷1081÷0.039.8÷0.79÷0.590.75÷3.31.2÷30.72÷120.7×1.10.72÷49.6÷60.32÷160.5×1.10.5+0.141.25×4 7.6-3.8 6.8÷1.70.56÷142.4÷0.61.55÷0.50.35÷0.0736÷1.24.8÷33.6÷180.54÷2.71.5×40.16×5 4.2×1000 0.45÷0.153.6÷0.18.5×100 0.04×25 0.096÷0.0384÷4.21000×0.756 3.8×2 7.2÷0.97×0.08 1.87×0 0.245÷5 0.8×0.5 6÷0.12 1.25×44×0.25 2.5÷106.3÷2.1 0.92÷4 80÷1.6 0.15×87.2÷0.66.6×0.61.78×2 5.37×5 9.6×0.63.9×7 53×2 0.01÷0.2 7.5÷2.58.8÷2.2 0.96÷6 2.4÷2 6.4—4 0.6÷355×3 4.4×25 2.64×5 3.8×10.1 0.98×0.7 0.47×0.7 0.7×0.57 1.21×30.78×516.9= 5.3×4.2= 5.24×0.99= 10.65×0.22= 1×0.125= 0.125×11= 12 ×0.03= 3 ×0.121= 8.6 × 0.7= 7.6 ×16.73×2.5 8.53×0.99 18= 1.4 × 15=五年级数学上册口算题卡小数乘法计算(2)0.1 ×0.2= 3.57 × 5= 4.2 × 0.1= 99 ×0.35= 0.05 ×0.8= 1.23 × 3= 0.36 ×12= 1.7×5 5.8×0.29 5.8×2.9 8.6×18 1.42× 7.3×0.43= 1.2 × 0.4= 7.5 × 2.5 × 4= 0.4 ×1.3= 5.43 × 0.86= 0.85 ×1.01= 5.29 ×2.3= 0.1 × 0.01= 0.28 ×35= 4.68 ×1.25= 25.7 ×3.29= 6.71 × 25.7= 6.5 ×56.5= 1 × 0.85= 4.73 × 3.9= 47.3 ×39= 47.3 ×0.39= 0.473 × 0.39= 2.4 × 5= 1 ×1.25= 0.45 × 0.09= 6.2 ×0.03= 9 ×0.18= 0.25 × 16= 0.125 ×0.125= 0.7 × 8= 9.9 × 2.5 × 4= 3.05 × 4= 6.8 ×2= 1.05 × 0.1= 4.2 ×21= 5.64 —2.1= 1.25 × 80= 17.5 × 7.5 × 2= 0.77 ×1.1= 1.2 —0.08=五年级数学上册口算题卡小数的加减乘除法混合运算(6)0.5 -0.35 ÷ 0.7 = 0.7 -0.09 ÷ 0.3 =0.8 -0.2 ÷ 0.4 = 7 -0.35 ÷ 0.5 =6.3 ÷ 0.9 - 0.6 =0.18 ÷ 0.2 - 0.3 =5.4 ÷ 0.9 - 0.2 =2 ÷ 0.4 - 0.4 =1.5 ÷ 0.3 - 0.4 =0.42 ÷ 0.6 - 0.4 =0.9 -0.42 ÷ 0.6 = 0.2 -0.08 ÷ 0.4 =0.4 ÷ 0.5 - 0.2 =1.6 ÷ 0.2 - 0.6 =0.42 ÷ 0.7 - 0.2 = 8 -0.06 ÷ 0.3 =0.5 -0.12 ÷ 0.3 = 0.4 -0.12 ÷ 0.6 =0.9 -0.12 ÷ 0.2 = 5 -0.25 ÷ 0.5 =-0.1 ÷ 0.5 = 8 - 0.32 ÷ 0.4 =-0.12 ÷ 0.3 = 0.4 -0.04 ÷ 0.2 = 6.43 - 1.43 + 2.33 = 7.64 - 2.64 + 13.3 =×(3.5 + 1.5)=(0.5 +4.3)× 0.2 =五年级数学上册口算题卡小数的加减乘除法混合运算(7)0.08 × 0.125 × 0.8 =0.5 × 0.2 × 0.2 =8.31 - 0.49 - 7.31 = 7.01 + 6.3 - 0.31 =7.63 - 4.54 - 0.46 = 8.51 - 4.51 + 6.57 =5.32 - 1.32 +6.83 =0.02 × 0.5 × 0.2 =8.64 - 2.64 + 2.24 =2 × 0.3 +2 × 2.2 =5.01 + 0.4 - 0.08 = 72.2 - 32.2 - 0.4 =7.13 - 6.38 - 0.62 = 5.43 - 1.43 + 31.2 =0.04 × 0.25 × 0.5 =5 × 0.2 × 0.2 =8.15 - 0.61 - 2.15 = 7.65 - 1.65 + 76.2 =0.04 × 0.25 × 0.8 = 61.2 - 0.7 - 59.3 =8.55 - 7.62 - 0.38 = 4.21 - 1.21 + 4.73 =(3.5 +2.3)× 0.2 = 65.8 - 3.3 - 36.7 =0.2 × 0.005 × 0.9 =0.2 × 0.005 × 0.2 =4.53 - 0.07 - 0.93 = 7.93 -5.93 - 0.36 =五年级数学上册口算题卡小数的加减乘除法混合运算(8)4.3 × 0.3 + 4 =1.6 × 0.5 + 6 =2 × 3.5+3= 4.7 × 0.2 + 2 =6 × 0.9 + 8.8 =5 × 0.7 +5.4 =2.2 × 0.2 + 6 =9 × 0.8 + 8.2 = 1 +0.8 × 1.1 =3.4 × 0.3 + 3 = 7 +0.7 × 1.5 =7.7 × 0.5 + 8 =6.8 × 0.3 + 5 = 6 +0.9 ×7.5 =5 × 0.8 + 4.4 =+0.9 × 5.1 =3 × 0.9 + 1.4 =5 × 0.9 + 4.6 =9.4 × 0.1 + 7 =8.7 × 0.5 + 1 =4 × 0.8 + 7.4 =4.6 × 0.3 + 1 =1 × 0.6 + 3.2 =3.5 × 0.3 + 7 =+0.7 × 4.7 =2.1 × 0.4 + 2 =3 × 0.7 + 1.6 =+0.7 × 8.3 = 2 +0.6 × 8.5 =4.7 × 0.4 + 7 =3.5 × 0.3 + 4 =2.8 × 0.2 + 6 = 5 +0.8 × 3.1 =+0.7 × 5.1 =4.4 × 0.3 + 4 =6 × 0.7 + 8.4 =+0.9 × 3.5 =2.5 ×4+0.125= 1.25 × 8-0.5= 10 ÷4+0.5= 10 ×0.12-0.12= 0.36 ÷ 0.3+1.8=五年级数学上册口算题卡五年级数学口算综合一3.4 -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=1.5×7=1.32×8=0.7×8=10.3×2=5×0.6=0.9×0.3=3.5×0.2=2.01×0=10×0.05=0.13×7=0.21×100=0.7×4=0.05×4=4×0.3=430-250= 0.17+0.06= 1.02-0.09= 7200÷800= 0.17+0.6=0.83-0.6= 17×300= 0.98-0.09= 0.2+0.78= 600×700= 10.2+0.02= 0.15+0.7=五年级数学上册口算题卡五年级数学口算综合二670+250= 0.2+0.2= 9.2-6= 8500÷500= 3.2-3.2= 3.7+2.3= 25×100= 3.2-0.32= 2+2.8= 380-290= 0.35+0.5= 0.35+0.63= 3500÷70= 3.1+3= 3.8+0.38= 7500÷250= 3.8+1= 0.95-0.05= 450+780= 3.1+0.3= 3+0.3= 630÷9= 4.5-0.4= 9.5-5= 330×9= 9.53-1.53= 9.5-0.5= 3.5+2.4= 1-0.95= 0.3+0.27= 0.47+0.13= 4.5+4= 4-0.6= 0.95+0.05= 2.5+3.2= 0.74+0.16= 23×100= 9.8-4.8= 480÷40=0.53÷100= 5.1+2.3= 125×80= 0.078÷10= 0.52+0.4= 70×12=五年级数学上册口算题卡五年级数学口算综合三0.25×100= 3.4-2.8= 0.6-0.37= 0.052×10= 10+0.08= 1-0.75= 0.5×1000= 7.82+0.3= 13.5+6.5= 3.05×100= 1.2-0.8= 21.6-12.6= 63÷100= 0.83-0.5= 0.76+0.14= 80÷1000= 2.7+0.4= 0.72-0.43= 30×100= 0.92-0.2= 3.5+4.8= 3.5+2.4= 5+0.07= 1-0.61= 0.47+0.23= 0.25+0.75= 3.7+0.33= 0.51+0.33= 1-0.6= 1.2+3.6= 0.175 +0.0225= 8 ×0.125= 5.6 + 3.8= 0.62 -0.32= 0.02 ×0.5= 0.75 ÷ 0.25= 16.8 ÷4= 0.04 ×2.5= 0.25 × 8= 5.9 -2.5= 0.1 +0.01= 0.125 × 8= 3.08×0.01=4.95×1000= 6.9×0.1=第五篇:小数乘除法教案doc一、小数扩大或缩小规律:1)在乘法里,一个因数不变,另外一个因数扩大(或缩小)a倍,积也扩大(或缩小)____倍。
小数乘除法计算大全
小数乘除法计算大全一、小数除法竖式计算题:67.5÷15 = 4.521.24÷36 = 0.590.736÷23 = 0.03243.5÷12 = 3.625210÷1.4 = 15051.3÷0.27 = 19091.2÷3.8 = 240.66÷0.32 = 2.06251÷0.4 = 2.52.56÷32 = 0.0850.18÷38.6 = 1.34.68÷75 = 0.062414.7÷0.07 = 2105.4÷15 = 0.36124.8÷0.24 = 52023.4÷585 = 0.040.544÷0.025 = 21.76 203.5÷11 = 18.5 328÷1.6 = 2051.35÷27 = 0.057.65÷0.85 = 912.6÷0.28 = 45 62.4÷2.6 = 2454.4÷0.16 = 340 1.44÷1.8 = 0.8 11.7÷2.6 = 4.5 19.4÷12 = 1.62 59.8÷0.23 = 260 1.35÷15 = 0.09 28.6÷11 = 2.620.4÷24 = 0.853.64÷52 = 0.07156÷0.12 = 1300 25.2÷6 = 4.234.5÷1.5 = 235.6÷0.04 = 1401.8÷12 = 0.151.8÷1.2 = 1.514.21÷7 = 2.0324÷1.5 = 161.26÷18 = 0.0743.5÷29 = 1.518.9÷0.27 = 70二、请用简便方法计算下列各题:0.25×0.28 = 0.070.125×3.2×2.5 = 135×40.2 = 14070.25×4÷0.25×4 = 43.5×9.9 = 34.653.5×99+3.5 = 348.53.5×2.7-3.5×0.7 = 732+5.6)÷0.8 = 453.5÷0.6-0.5÷0.6 =4.177.35÷(7.35×0.25) = 167.35÷(7.35÷0.25) = 0.257.325-(5.325+1.7) = 0.33.29+0.73+2.27 = 6.293.29-0.73-2.27 = 0.297.5+2.5-7.5+2.56 = 5.063.4÷2.5÷0.4 = 3.43.9÷(1.3×5) = 0.60.35×1.25×2×0.8 = 0.732.4×0.9+0.1×32.4 = 32.767.6×0.8+0.2×7.6 = 6.560.25×8.5×4 = 8.528.6×101-28.6×2 = 2778.42.4×102-2.4 = 238.8本文没有明显的格式错误,但是第一行的数字似乎是一串随机的数字,缺乏上下文和意义,因此可以删除。
小数的乘除法计算题
20 道小数乘除法计算题一、小数乘法1. 2.5×3.6-解析:先按照整数乘法计算,25×36 = 900。
然后看因数中一共有两位小数,从积的右边起数出两位点上小数点,结果是9。
2. 1.2×4.5-解析:12×45 = 540,因数中一共有两位小数,结果是5.4。
3. 0.8×0.7-解析:8×7 = 56,因数中一共有两位小数,结果是0.56。
4. 3.2×2.1-解析:32×21 = 672,因数中一共有两位小数,结果是6.72。
5. 4.5×1.8-解析:45×18 = 810,因数中一共有两位小数,结果是8.1。
二、小数除法6. 12.6÷3-解析:126÷3 = 42,被除数和除数同时扩大10 倍,商不变。
所以12.6÷3 = 4.2。
7. 25.2÷6-解析:252÷6 = 42,被除数和除数同时扩大10 倍,商不变。
所以25.2÷6 = 4.2。
8. 18.9÷3-解析:189÷3 = 63,被除数和除数同时扩大10 倍,商不变。
所以18.9÷3 = 6.3。
9. 36.4÷8-解析:364÷8 = 45.5,被除数和除数同时扩大10 倍,商不变。
所以36.4÷8 = 4.55。
10. 42.5÷5-解析:425÷5 = 85,被除数和除数同时扩大10 倍,商不变。
所以42.5÷5 = 8.5。
11. 15.6÷4-解析:156÷4 = 39,被除数和除数同时扩大10 倍,商不变。
所以15.6÷4 = 3.9。
12. 21.7÷7-解析:217÷7 = 31,被除数和除数同时扩大10 倍,商不变。
小数乘除法练习题及答案100道
小数乘除法练习题及答案100道6÷1.=3.2÷= .2÷ 0.= 4÷1.=12÷0.1= .75÷0.2= 12÷0.7= 1÷0.= 16.9÷0.1= 1.55÷3.= .7×0.01=.2÷= 0.3÷0.1= 0.5×0.1= 1.4×= 0.1×0.01 = 0.35×= .35÷=1÷0.01 = ÷ 0.= 0.32×0 =1÷0.1 = 12.5×= .6÷0.= 0.25×0.=2.5×=÷0.=66.6÷1.11 = 0.125×= .3÷0.31 =1.5×= .5×= 0.13×=2.4-0.= .4÷10 = .2×1000 =0.45÷0.1= .6÷0.1 = O.75×0.=8.5×100 = .2÷100 = 0.18×0.=8.5÷1.= 1.2÷0.= 0.49÷0.=0.04×2= 0.096÷0.0=4÷4.=1000×0.75= 0.5×100 =0.1÷0.2= 1÷0.01 = 1.25×=3.8×= .2÷0.=1.6× 0.=9.3÷0.= ÷0.= 0.45÷0.=0.2÷0.01 =.6×2.= .77×1.= 0.02×9=.22×0.=.99×0.0=.67×0.=×2.4= 1.666×6.1 =.432×0.00=.6×6.= 101.7÷=7.5÷1=30.4÷=1.24÷3=100道小数乘法计算题5.6×2..77×1.0.02×965.22×0.9.99×0.024.67×0.9.54×2.41.666×6.1.432×0.002.6×6..88×2.95.61×2.1.9×2..77×0.021.384×5.1 .78×82.6×610.059×0.24.268×1.57×5.9.46×2.855.555×5.256.78×.22×0.1.666×6.15.61×4.1.384×5.14.268×1.71.5×4.97.658×85.3×6.39.9×1.44.8×9.15.59×4.1.3×1.62.1×7.93.8×2.38.7×0.12.1×0.42.8×3.5 17.8×6..22×3.35.6×2.99.99×0.09.432×0.00.9×2.48.78×8357×5.2.5×0.886.02×0..4×7.6.4×2.0.6× 0.2×5.64.6×3.8.8×2.31.8×9.1.7×4.9.8×4.5×1.11.5×4..658×853.77×1.84.67×0.9.6×6.5.5×52.6×61 .46×2.855.555×5.6.78×84×8.812.48×4.2×1..4×8..1×5.61.8×9.6.1×4..6×8..7×9..9×8.22.5×0.886.02×0. 0.02×9×2.4.88×2..77×0.00.059×0.17.8×6..22×3.30.1×5..1×0..8×1..6×6. 0.5×4.6229.570.4×1. 11.259-2.1×7.7.5×5. 0.3×7..4×.9×1.7小数除法练习题一、填空1、0.56÷0.2=÷2=。
(完整版)小数乘除法计算题
(完整版)小数乘除法计算题小数乘除法计算题一、乘法:5。
6×2。
93。
77×1.8 0.02×965。
22×0.3 9.99×0.02 4。
67×0.95×2。
441。
666×6.1 9.432×0。
0025。
6×6。
5 4.88×2.9 5。
61×4。
38。
9×2.45.5×559.77×0。
021。
384×5.18。
78×832。
6×610。
059×0。
24.268×1.757×5.79.46×2。
8517.8×6.41.5×4。
92.5×0。
885。
555×5。
22.22×3.337。
658×8536。
02×0.356.78×8二、除法:85.44÷1642。
84÷7(完整版)小数乘除法计算题67.5÷15230.4÷6 21。
24÷36 0。
736÷23 43.5÷12 35。
21÷7 39.6÷246.21÷0.03 210÷1.451.3÷0。
27 91.2÷3.80。
756÷0。
180。
66÷0。
311。
97÷1。
569.6÷2。
938.4÷0.815÷0.06(循环小数的用简便方法,除不尽保留2位小数):8。
2÷0.120.8÷0.976。
4÷5.44。
7÷31.25÷1。
232÷4214。
36÷2。
78.33÷6。
21。
五年级小数乘除法计算题
小数乘除法计算题1、乘法:5.6 X6.5 5.6 X2.93.77 X1.84.88 X2.9 0.02 X965.61 X4.3 5.22 X0.3 8.9 X2.4 9.99 X0.02 5.5 X554.67 X0.9 9.77 X0.025 X2.44 1.384 X5.11.666 X6.1 8.78 X832.6 X61 9.432 X0.0020.059 X0.2 56.78 X8 4.268 X1.7 2、除法:57 X5.7 85.44 -16 9.46 X2.85 42.84 -7 17.8 X6.4 101.7 -H91.5 X4.9 67.5 -152.5 X0.88 230.4 北5.555 X5.2 21.24 -36 2.22 X3.33 0.736 -23 7.658 X85 43.5 -12 36.02 X0.3 35.21 -739.6 -24 (循环小数的用简便方法,除不尽保留2位小数):6.21 —).038.2 --).12210 -1.40.8 —).951.3 —).2776.4 十5.491.2 十3.84.7 -30.756 —).181.25 -1.20.66 -).332 -4211.97 -1.514.36 -2.769.6 -2.98.33 -6.238.4 *0.81.7 -).0315 -).062.41 -X).73、用竖式计算0.396 -1.2= 0.756 -).36= 15.6 X13=0.18 X15= 0.025 X14= 3.06 X36=0.04 X0.12 = 3.84 X2.6 〜 5.76 X3 =7.15 X22 90.75 -3.3 3.68 X0.25 16.9 -).13 1.55 -3.9 3.7 X0.016 13.76 X0.8= 5.2 X0.6 8.4 X1.3 6.4 X0.5 4.48 X0.4 5.25 X5 35.4 X4.2 0.042 X0.54 0.76 X0.32 0.25 X0.046 2.52 X3.4 1.08 X25 (保留一位小数)0.12 X0.5 X0.16 = 4.8 X0.25 = 0.125 X1.4"(保留两位小数)2.5叽).7= (保留三位小数)10.1 -3.3= (商用循环小数)10.75 -12.5= (用乘法验算) 3.25 X9.04= (用除法验算)4、脱式计算(能简算的要简算)2.5 X7.1 X4 16.12 X99 + 16.12 5.2 X0.9 + 0.97.28 X99+7.28 4.3 X50 X0.2 64 —2.64 X0.526 X15.7 + 15.7 X24 (2.275 + 0.625)X0.283.94+34.3 X0.2 1.2 X(9.6 十2.4)-4.88.9 X1.1 X4.7 2.7 X5.4 X3.9 3.6 X9.85-5.468.05 X3.4+7.6 6.58 X4.5 X0.9 2.8 X0.5+1.5832 + 4.9 —0.9 4.8 —4.8 X0.5 (1.25 —0.125) X84.85 + 0.35 - 1.44.8 X100.1 56.5 X99 + 56.5 7.09 X10.8 —0.8 X7.09 8.7 X 17.4 - 8.7 X 7.412.5 X0.4 X2.5 X8 0.87 X3.16+4.64 9.5 X1010.68 十(5.2 -3.5 ) X 1.2540.5 - 0.81 X 0.18 4.8 X(15 - 2.4)6.81+6.81 X99 0.25 X185 X40 4.4 X0.8 —3.4 X0.8 (9.37+9 . 37+9 . 37+9 . 37) X 2. 52.37 X6.3+2.37 X3.7 2.5 X1.25 X0.32 3.8 X10.12.5 X(3.8 X0.04) 7.69 X101 3.8 X10.1 0.25 X39+0.25 0.125 X72 46 X0.33+54 X0.33(8 X5.27) X1.25 6.81+6.81 X99 0.25 X185 X406.8 X0.75 叽).5 3.75 十0.125 275 1.53+23.4 -7.29.5 X99 13.5 X0.98 12.5 X8.81•一台榨油机每小时榨油0.45吨,4台这样的榨油机3.5小时榨油多少吨?2. 小华和小川两人同时从乙地分别向甲、丙两地背向而行,小华每小时走3.2千米,小川每小时走2.6千米,走了4小时两人相距多远?(用两种方法解答)3. 一批煤计划每天烧0.6吨,可以烧70天。
五年级小数乘除法计算题50道
五年级小数乘除法计算题50道一、小数乘法(25道)1. 0.25×4 =解析:计算时,先按照整数乘法计算25×4 = 100,然后看因数中一共有两位小数,就从积的右边起数出两位点上小数点,所以结果是1。
2. 0.3×0.5=解析:先算3×5 = 15,因数共有两位小数,从积的右边起数出两位点上小数点,结果是0.15。
3. 1.2×3=解析:按整数乘法12×3 = 36,因数中有一位小数,所以结果是3.6。
4. 2.5×0.4=解析:先算25×4 = 100,因数共有两位小数,积为1。
5. 0.12×5=解析:计算12×5 = 60,因数有两位小数,结果是0.6。
6. 1.5×0.6=解析:15×6 = 90,因数共有两位小数,积是0.9。
7. 0.8×0.9=解析:8×9 = 72,因数共有两位小数,结果是0.72。
8. 2.3×0.3=解析:23×3 = 69,因数共有两位小数,积是0.69。
解析:14×7 = 98,因数共有两位小数,结果是0.98。
10. 0.6×1.5=解析:6×15 = 90,因数共有两位小数,积是0.9。
11. 3.2×0.2=解析:32×2 = 64,因数共有两位小数,积是0.64。
12. 0.7×0.8=解析:7×8 = 56,因数共有两位小数,结果是0.56。
13. 1.6×0.5=解析:16×5 = 80,因数有一位小数,积是0.8。
14. 2.4×0.3=解析:24×3 = 72,因数共有两位小数,积是0.72。
15. 0.9×1.2=解析:9×12 = 108,因数共有两位小数,积是1.08。