1.25×40.8×2.5怎么算
答案:3 悬赏:80 手机版
解决时间 2021-01-21 19:21
- 提问者网友：箛茗
- 2021-01-21 09:46
1.25×40.8×2.5怎么算
最佳答案
- 五星知识达人网友：过活
- 2021-01-21 10:45
原式
=1.25×8×5.1×2.5
=10×2.5×5.1
=25×(5+0.1)
=25×5+25×0.1
=125+2.5
=127.5
=1.25×8×5.1×2.5
=10×2.5×5.1
=25×(5+0.1)
=25×5+25×0.1
=125+2.5
=127.5
全部回答
- 1楼网友：笑迎怀羞
- 2021-01-21 13:05
=【1.25X(40+0.8)】x2.5
=(1.25x40+1.25X0.8)x2.5
=(50+1)x2.5
=51x(2+0.5)
=51x2+51x0.5
=102+25.5
=127.5
=(1.25x40+1.25X0.8)x2.5
=(50+1)x2.5
=51x(2+0.5)
=51x2+51x0.5
=102+25.5
=127.5
- 2楼网友：拜訪者
- 2021-01-21 12:02
1.25×4×0.8×2.5
=（1.25×0.8）×（4×2.5）
=1×10
=10
=（1.25×0.8）×（4×2.5）
=1×10
=10
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