2.5×(0.4+0.8)×12.5怎样简便计算
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解决时间 2021-03-29 03:08
- 提问者网友：兔牙战士
- 2021-03-28 20:04
2.5×(0.4+0.8)×12.5怎样简便计算
最佳答案
- 五星知识达人网友：玩家
- 2021-03-28 21:31
2.5×(0.4+0.8)×12.5
=(1+ 2)×12.5
=3×12.5
=3.75
=(1+ 2)×12.5
=3×12.5
=3.75
全部回答
- 1楼网友：枭雄戏美人
- 2021-03-28 23:40
0.4+0.8=2×0.6
2.5×2×0.6×12.5
=5×0.6×12.5
=3×12.5
=37.5
2.5×2×0.6×12.5
=5×0.6×12.5
=3×12.5
=37.5
- 2楼网友：时间的尘埃
- 2021-03-28 22:21
原式
=2.5x0.4x12.5+2.5x0.8x12.5
=1x12.5+2.5x10
=12.5+25
=37.5
=2.5x0.4x12.5+2.5x0.8x12.5
=1x12.5+2.5x10
=12.5+25
=37.5
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