57×53/56简便简便！快点快点！
答案:3 悬赏:20 手机版
解决时间 2021-01-25 03:54
- 提问者网友：niaiwoma
- 2021-01-24 13:43
57×53/56简便简便！快点快点！
最佳答案
- 五星知识达人网友：底特律间谍
- 2021-01-24 14:47
57×53/56
=(56+1)×53÷56
=[56×53+1×53]÷56
=56×53÷56+53÷56
=53+53÷56
=53又56分之53
=(56+1)×53÷56
=[56×53+1×53]÷56
=56×53÷56+53÷56
=53+53÷56
=53又56分之53
全部回答
- 1楼网友：山河有幸埋战骨
- 2021-01-24 16:18
原式=（56+1）×53/56=53+53/56
- 2楼网友：雾月
- 2021-01-24 16:02
57×53/56
= (56+1)×53/56
= 53 + 53/56
= 53 又53/56追问2.25×3/5+2.25÷5/3+60％简算追答2.25×3/5+2.25÷(5/3)+60％
= 2.25×3/5+2.25×3/5 + 3/5
= (3/5) × (2.25 + 2.25 + 1)
= (3/5) × 5.5
= 3.3
= (56+1)×53/56
= 53 + 53/56
= 53 又53/56追问2.25×3/5+2.25÷5/3+60％简算追答2.25×3/5+2.25÷(5/3)+60％
= 2.25×3/5+2.25×3/5 + 3/5
= (3/5) × (2.25 + 2.25 + 1)
= (3/5) × 5.5
= 3.3
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