题目内容
计算下面各题,能用简便方法算的用简便方法算。
|
| (1)原式=17.92-7.92-0.3 =10-0.3 =9.7 |
(2)原式=210÷(14×5) =210÷70 =3 |
| (3)原式= =( = |
(4)原式= = = |
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题目内容
计算下面各题,能用简便方法算的用简便方法算。
|
| (1)原式=17.92-7.92-0.3 =10-0.3 =9.7 |
(2)原式=210÷(14×5) =210÷70 =3 |
| (3)原式= =( = |
(4)原式= = = |