题目内容
脱式计算。(能简算的要简算)
|
| (1)原式=2.5+0.78 =3.28 |
(2)原式=6.5×(10+0.1) =65.65 |
| (3)原式=807×(100-3) =80700-2421 =78279 |
(4)原式= =0.5 |
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题目内容
脱式计算。(能简算的要简算)
|
| (1)原式=2.5+0.78 =3.28 |
(2)原式=6.5×(10+0.1) =65.65 |
| (3)原式=807×(100-3) =80700-2421 =78279 |
(4)原式= =0.5 |