题目内容
12．直接写出得数．| 0.5×40= | 0.18×0.4= | 1.5×6= | 0.02×0.3= |
| 1.25×0.8= | 0.75×4= | 2.76+3.5= | 0.5×0.4= |
| 9-0.36= | 7.04×10= | 50×0.02= | 1.11×0.5= |
分析 根据小数加减和乘法的计算方法解答．
解答 解：
| 0.5×40=20 | 0.18×0.4=0.072 | 1.5×6=9 | 0.02×0.3=0.006 |
| 1.25×0.8=1 | 0.75×4=3 | 2.76+3.5=6.26 | 0.5×0.4=0.2 |
| 9-0.36=8.64 | 7.04×10=70.4 | 50×0.02=1 | 1.11×0.5=0.555 |
点评 直接写得数时，注意数据特点和运算符号，细心解答即可．
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