题目内容
直接写得数 0.4+0.06= |
8.6-7= | 1+0.45= |
7×0.9= | 0.78×0.1= | 32.1×0.2= |
1.8-0.5= | 3.2÷32= | 0.36÷0.09= |
4.3-2.3= | 9.6÷0.3= | 3.2+4.7= |
2÷0.5= | 0.1×0.1= | 21÷0.3= |
2.8+8= |
分析:根据小数加减乘除四则运算的法则求解.
解答:解:
0.4+0.06=0.46, | 8.6-7=1.6, | 1+0.45=1.45, |
7×0.9=6.3, | 0.78×0.1=0.078, | 32.1×0.2=6.42 |
1.8-0.5=1.3, | 3.2÷32=0.1, | 0.36÷0.09=4, |
4.3-2.3=2, | 9.6÷0.3=32, | 3.2+4.7=7.9, |
2÷0.5=4, | 0.1×0.1=0.01, | 21÷0.3=70, |
2.8+8=10.8. |
点评:本题考查简单的小数运算,计算时要细心,注意小数的位数.
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