125乘23减25怎样简便
答案:6 悬赏:40 手机版
解决时间 2021-11-25 08:40
- 提问者网友:我是女神我骄傲
- 2021-11-25 00:56
125乘23减25怎样简便
最佳答案
- 五星知识达人网友:人间朝暮
- 2021-11-25 01:15
125x23-25
=125x(25-2)-25
=125x25-125x2-25
=(125-1)x25-250
=124x25-250
=(100+20+4)x25-250
=2500+500+100-250
=27850
=125x(25-2)-25
=125x25-125x2-25
=(125-1)x25-250
=124x25-250
=(100+20+4)x25-250
=2500+500+100-250
=27850
全部回答
- 1楼网友:迷人又混蛋
- 2021-11-25 05:34
解: 125*23-25
=125*(20+3)-25
=2500+375-25
=2500+350
=2850
=125*(20+3)-25
=2500+375-25
=2500+350
=2850
- 2楼网友:雾月
- 2021-11-25 05:07
125*(24-1)-25
=5*25*(4*6-1)-25
=(5*6)*(25*4)-5*25-25
=30*100-6*25
=30000-150
=29850
=5*25*(4*6-1)-25
=(5*6)*(25*4)-5*25-25
=30*100-6*25
=30000-150
=29850
- 3楼网友:罪歌
- 2021-11-25 03:48
125 × 23 - 25
= 25 × 5 × 23 - 25
= 25 × 114
= 2500 + 250 + 100
= 2850
= 25 × 5 × 23 - 25
= 25 × 114
= 2500 + 250 + 100
= 2850
- 4楼网友:十鸦
- 2021-11-25 03:21
125乘23减25怎样简便
解:采用分配律,
原式=(100+25)x23-25
=23x100+25x23-25
=2300+25x(23-1)
=2300+25x2x11
=2300+550
=2850
解:采用分配律,
原式=(100+25)x23-25
=23x100+25x23-25
=2300+25x(23-1)
=2300+25x2x11
=2300+550
=2850
- 5楼网友:酒安江南
- 2021-11-25 01:45
125x23-25
=25x5x(4x6-1)-25
=(25x4)x(5x6)-25x5-25
=100x30-25x(5+1)
=3000-150
=2850
=25x5x(4x6-1)-25
=(25x4)x(5x6)-25x5-25
=100x30-25x(5+1)
=3000-150
=2850
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