4.25×9.9+42.5的简算怎么算
答案:5 悬赏:30 手机版
解决时间 2021-01-25 01:35
- 提问者网友：浪荡绅士
- 2021-01-24 04:45
4.25×9.9+42.5的简算怎么算
最佳答案
- 五星知识达人网友：话散在刀尖上
- 2021-01-24 04:54
4.25×9.9+42.5的简算
=4.25x(10-0.1)+42.5
=4.25x10-4.25x0.1+42.5
=42.5+42.5-0.425
=85-0.425
=84.575
=4.25x(10-0.1)+42.5
=4.25x10-4.25x0.1+42.5
=42.5+42.5-0.425
=85-0.425
=84.575
全部回答
- 1楼网友：一秋
- 2021-01-24 07:11
4.25×9.9+42.5的简算
4.25×9.9+42.5
=4.25×9.9+4.25×0.1
=4.25×(9.9+0.1)
=4.25×10
=42.5
4.25×9.9+42.5
=4.25×9.9+4.25×0.1
=4.25×(9.9+0.1)
=4.25×10
=42.5
- 2楼网友：杯酒困英雄
- 2021-01-24 07:03
4.25 * (10 - 0.1) + 42.5 = 42.5 - 0.425 + 42.5 = 85 - 0.425 = 84.575
- 3楼网友：执傲
- 2021-01-24 06:51
4.25×9.9+42.5
=42.5×0.99+42.5
=42.5×（0.99+1）
=42.5×（2-0.01）
=42.5×2-42.5×0.01
=85-0.425
=84.575
=42.5×0.99+42.5
=42.5×（0.99+1）
=42.5×（2-0.01）
=42.5×2-42.5×0.01
=85-0.425
=84.575
- 4楼网友：十年萤火照君眠
- 2021-01-24 05:58
计算：
=4.25*9.9+4.25*10
=4.25*（9.9+10）
=4.25*19.9
=84.575
=4.25*9.9+4.25*10
=4.25*（9.9+10）
=4.25*19.9
=84.575
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