4.25乘三点7×40怎样简便计算
答案:1 悬赏:30 手机版
解决时间 2021-01-21 06:36
- 提问者网友：战皆罪
- 2021-01-20 16:04
4.25乘三点7×40怎样简便计算
最佳答案
- 五星知识达人网友：胯下狙击手
- 2021-01-20 17:06
4.25x3.7x40
=(425x4)x37
=1650x40-1650x3
=66000-4950
=66000-5000+50
=61050追问不是这种方法的追答4.25x3.7x40
=4x3.7x40+0.25x40x3.7
=16x40-16x3+10x3.7
=640-48+37
=640-40-8+37
=600+29
=629
=(425x4)x37
=1650x40-1650x3
=66000-4950
=66000-5000+50
=61050追问不是这种方法的追答4.25x3.7x40
=4x3.7x40+0.25x40x3.7
=16x40-16x3+10x3.7
=640-48+37
=640-40-8+37
=600+29
=629
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