题目内容
计算,能简算的要简算。
|
| (1)原式=1×0.4÷2 =0.2 |
(2)原式= 40×(857+286-356) = 40×787 =31480 |
| (3)原式= =9+25+18 =52 |
(4)原式=75.65-23.65-12.3 =52-12.3 =39.7 |
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题目内容
计算,能简算的要简算。
|
| (1)原式=1×0.4÷2 =0.2 |
(2)原式= 40×(857+286-356) = 40×787 =31480 |
| (3)原式= =9+25+18 =52 |
(4)原式=75.65-23.65-12.3 =52-12.3 =39.7 |