1.25×8.7×7.2的简便方法
答案:4 悬赏:50 手机版
解决时间 2021-02-27 05:48
- 提问者网友:原来太熟悉了会陌生
- 2021-02-26 18:54
1.25×8.7×7.2的简便方法
最佳答案
- 五星知识达人网友:撞了怀
- 2021-02-26 20:18
1.25×8.7×7.2
=1.25x8x0.9x8.7
=10x0.9x8.7
=8.7x10-8.7x1
=87-8.7
=78.3
=1.25x8x0.9x8.7
=10x0.9x8.7
=8.7x10-8.7x1
=87-8.7
=78.3
全部回答
- 1楼网友:你可爱的野爹
- 2021-02-26 22:43
1.25×8.7×7.2
=1.25x8x0.9x8.7
=10x0.9x8.7
=87(1-0.1)
=87-8.7
=78.3
=1.25x8x0.9x8.7
=10x0.9x8.7
=87(1-0.1)
=87-8.7
=78.3
- 2楼网友:鱼芗
- 2021-02-26 21:37
1.25×8.7×7.2
=10.875×7.2
=62.64
=10.875×7.2
=62.64
- 3楼网友:醉吻情书
- 2021-02-26 20:53
原式
=1.25×0.8×8.7×9
=1×8.7×(10-1)
=8.7×10-1×8.7
=87-8.7
=78.3
=1.25×0.8×8.7×9
=1×8.7×(10-1)
=8.7×10-1×8.7
=87-8.7
=78.3
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