25乘72加28乘50怎么简便
答案:3 悬赏:0 手机版
解决时间 2021-04-05 13:41
- 提问者网友：十年饮冰
- 2021-04-04 13:40
25乘72加28乘50怎么简便
最佳答案
- 五星知识达人网友：等灯
- 2021-04-04 13:49
解:25*72+28*50
=25*72+28*25+28*25
=25*(72+28)+25*28
=25*100+25*(30-2)
=2500+750-50
=3200
=25*72+28*25+28*25
=25*(72+28)+25*28
=25*100+25*(30-2)
=2500+750-50
=3200
全部回答
- 1楼网友：旧脸谱
- 2021-04-04 15:35
25×72+28×50
=50×(36+28)
=50×64
=32000
=50×(36+28)
=50×64
=32000
- 2楼网友：鸽屿
- 2021-04-04 15:18
25x72+28x50
=25x2x36+28x50
=50x36+28x50
=50x（36+28）
=50x64
=50x2x32
=100x32
=3200
=25x2x36+28x50
=50x36+28x50
=50x（36+28）
=50x64
=50x2x32
=100x32
=3200
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