题目内容
| 脱式计算。 | ||||
|
| (1)30+40×50 =30+200 =230 |
(2)61×4-128 =244-128 =116 |
| (3)200-24×3 =200-72 =128 |
(4)(81+11)×2 =92×2 =184 |
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题目内容
| 脱式计算。 | ||||
|
| (1)30+40×50 =30+200 =230 |
(2)61×4-128 =244-128 =116 |
| (3)200-24×3 =200-72 =128 |
(4)(81+11)×2 =92×2 =184 |