题目内容
0.36÷9= | 3.97-2.45= | 16×25= | 5.2+3.8= |
8.282÷8.2= | 10-0.87= | 4.3+1.8= | 18.9-9.8= |
0.8÷0.1= | 0.3+0.36= | 1.14×0.2= | 7.8÷3= |
0.8×15= | 0.125×8= | 4-1.08= | 9×1.8= |
1.2×8= | 7.82+1.18= | 30.5÷2= | 1.8×0.2= |
0.75÷30= | 0.25×3= | 4.8+1.2= | 0.5×48= |
0.7×7= | 1.1×9= | 25×0.8= | 3.2×5= |
3×1.2= | 2.04×4= | 0.72+2.8= | 0×3.97= |
0.13×80= | 18×30= | 50×4.1= | 0.125×2= |
6×0.75= | 1.01-0.89= | 9.767×0= | 0.02×0.3= |
3.9÷5= | 1÷0.125= | 70÷5= | 0÷9.126= |
0.72= | 16.5÷0.15= | 7÷1.4= | 1.21÷11= |
0.84÷0.42= | 0.7×0.9= | 0.3×400= | 5.1÷0.3= |
8.3+1.7= | 4.9÷0.7= | 0.3+0.3+0.3= | 0.81÷0.9×5= |
(0.9+8.1)×5= | 0.32= | 9.3÷(4.2-1.1)= | 1.7×0.6÷1.7= |
分析:0.72表示0.7×0.7;0.3+0.3+0.3可以根据乘法的意义求解;0.81÷0.9×5先算除法,再算乘法;(0.9+8.1)×5,先算括号里面的加法,再算乘法;0.32=表示0.3×0.3;9.3÷(4.2-1.1)先算括号里面的减法,再算除法;1.7×0.6÷1.7可以运用乘法交换律简算;其它题目按照运算法则直接求解.
解答:
解:0.36÷9=0.04, | 3.97-2.45=1.52, | 16×25=400, | 5.2+3.8=9, |
8.282÷8.2=1.01, | 10-0.87=9.13, | 4.3+1.8=6.1, | 18.9-9.8=9.1, |
0.8÷0.1=8, | 0.3+0.36=0.66, | 1.14×0.2=0.228, | 7.8÷3=2.6, |
0.8×15=12, | 0.125×8=1, | 4-1.08=2.92, | 9×1.8=16.2, |
1.2×8=9.6, | 7.82+1.18=9, | 30.5÷2=15.25, | 1.8×0.2=0.36, |
0.75÷30=0.025, | 0.25×3=0.75, | 4.8+1.2=6, | 0.5×48=24, |
0.7×7=4.9, | 1.1×9=9.9 | 25×0.8=20, | 3.2×5=16, |
3×1.2=3.6, | 2.04×4=8.16, | 0.72+2.8=3.52, | 0×3.97=0, |
0.13×80=10.4, | 18×30=540, | 50×4.1=205, | 0.125×2=0.25, |
6×0.75=4.5, | 1.01-0.89=0.12, | 9.767×0=0, | 0.02×0.3=0.006, |
3.9÷5=0.78, | 1÷0.125=8, | 70÷5=14, | 0÷9.126=0, |
0.72=0.49, | 16.5÷0.15=110, | 7÷1.4=5, | 1.21÷11=0.11 |
0.84÷0.42=2, | 0.7×0.9=0.63, | 0.3×400=120, | 5.1÷0.3=17, |
8.3+1.7=10, | 4.9÷0.7=7, | 0.3+0.3+0.3=0.9, | 0.81÷0.9×5=4.5, |
(0.9+8.1)×5=45, | 0.32=0.09, | 9.3÷(4.2-1.1)=3, | 1.7×0.6÷1.7=0.6. |
点评:本题考查了小数的基本的计算,计算时要细心,注意小数点的位置.
练习册系列答案
相关题目