题目内容
心算. 1.5×3= |
0.03×5= | 12×0.003= |
0.9×7= | 4×0.08= | 15×0.004= |
0.5×6= | 0.06×3= | 1.25×8= |
8×0.9= | 5×0.005= | 18×0.002= |
分析:根据小数乘法的运算法则求解.
解答:解:
1.5×3=4.5 | 0.03×5=0.15 | 12×0.003=0.036 |
0.9×7=6.3 | 4×0.08=0.32 | 15×0.004=0.06 |
0.5×6=3 | 0.06×3=0.18 | 1.25×8=10 |
8×0.9=7.2 | 5×0.005=0.025 | 18×0.002=0.036 |
点评:本题考查了基本的运算,计算时要细心,做到快速、准确.
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