12.4x2.54+7.6x2.5简便计算
答案:5 悬赏:10 手机版
解决时间 2021-11-28 15:48
- 提问者网友:战皆罪
- 2021-11-27 17:53
12.4x2.54+7.6x2.5简便计算
最佳答案
- 五星知识达人网友:千夜
- 2021-11-27 19:13
12.4x2.54+7.6x2.5
=12.4x2.5+12.4x0.04+7.6x2.5
=(12.4+7.6)x2.5+12.4x0.04
=20x2.5+0.496
=50+0.496
=50.496
=12.4x2.5+12.4x0.04+7.6x2.5
=(12.4+7.6)x2.5+12.4x0.04
=20x2.5+0.496
=50+0.496
=50.496
全部回答
- 1楼网友:患得患失的劫
- 2021-11-28 00:33
你确定是2.54,不是2.5???
- 2楼网友:神也偏爱
- 2021-11-27 23:06
图
- 3楼网友:鱼芗
- 2021-11-27 22:09
=12.4×(2.5+0.04)+7.6×2.5
=12.4×2.5+7.6×2.5+12.4×0.04
=2.5×(12.4+7.6)+12.4×0.04
=2.5×20+12.4×0.04
=5+0.496
=5.496追答=12.4×(2.5+0.04)+7.6×2.5
=12.4×2.5+7.6×2.5+12.4×0.04
=2.5×(12.4+7.6)+12.4×0.04
=2.5×20+12.4×0.04
=50+0.496
=50.496
=12.4×2.5+7.6×2.5+12.4×0.04
=2.5×(12.4+7.6)+12.4×0.04
=2.5×20+12.4×0.04
=5+0.496
=5.496追答=12.4×(2.5+0.04)+7.6×2.5
=12.4×2.5+7.6×2.5+12.4×0.04
=2.5×(12.4+7.6)+12.4×0.04
=2.5×20+12.4×0.04
=50+0.496
=50.496
- 4楼网友:鱼忧
- 2021-11-27 20:41
12.4X2.54+7.6X2.5
=12.4X2.5+12.4X0.04+7.6X2.5
=2.5X(12.4+7.6)+0.496
=2.5X20+0.496
=50.496
=12.4X2.5+12.4X0.04+7.6X2.5
=2.5X(12.4+7.6)+0.496
=2.5X20+0.496
=50.496
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