5.16x2.5一2.5用简便方法
答案:6 悬赏:20 手机版
解决时间 2021-11-10 08:06
- 提问者网友:孤凫
- 2021-11-09 10:59
5.16x2.5一2.5用简便方法
最佳答案
- 五星知识达人网友:过活
- 2021-11-09 12:25
全部回答
- 1楼网友:神的生死簿
- 2021-11-09 16:13
=(5.16-1)×2.5
=4.16×2.5
=4×2.5+0.2×2.5-0.04×2.5
=10+0.5-0.1
=10.4
=4.16×2.5
=4×2.5+0.2×2.5-0.04×2.5
=10+0.5-0.1
=10.4
- 2楼网友:duile
- 2021-11-09 15:26
5.16x2.5一2.5
=2.5x(5.16-1)
=2.5x4.16
=2.5x4+2.5x0.16
=10+2.5x0.4x0.4
=10+0.4
=10.4
=2.5x(5.16-1)
=2.5x4.16
=2.5x4+2.5x0.16
=10+2.5x0.4x0.4
=10+0.4
=10.4
- 3楼网友:玩世
- 2021-11-09 14:02
5.16*2.5-2.5
=2.5(5.16-1)
=2.5*4.16
=2.5(4+0.16)
=2.5*4+2.5*0.16
=10+0.4
=10.4
=2.5(5.16-1)
=2.5*4.16
=2.5(4+0.16)
=2.5*4+2.5*0.16
=10+0.4
=10.4
- 4楼网友:老鼠爱大米
- 2021-11-09 13:40
5.16x2.5一2.5
=(5.16-1)X2.5
=4.16X2.5
=(4+0.16)X2.5
=4X2.5+0.16X2.5
=10+0.4X0.4X2.5
=10+0.4X2.5X0.4
=10+1X0.4
=10+0.4
=10.4
=(5.16-1)X2.5
=4.16X2.5
=(4+0.16)X2.5
=4X2.5+0.16X2.5
=10+0.4X0.4X2.5
=10+0.4X2.5X0.4
=10+1X0.4
=10+0.4
=10.4
- 5楼网友:不甚了了
- 2021-11-09 13:06
5.16x2.5-2.5
=5.16x2.5-2.5x1
=2.5x(5.16-1)
=2.5x4.16
=2.5x(4+0.16)
=2.5x4+2.5x0.16
=10+0.4
=10.4
希望帮到你 望采纳 谢谢 加油~
=5.16x2.5-2.5x1
=2.5x(5.16-1)
=2.5x4.16
=2.5x(4+0.16)
=2.5x4+2.5x0.16
=10+0.4
=10.4
希望帮到你 望采纳 谢谢 加油~
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