35×38+35×62+65×39+35×399 简便方法
答案:5 悬赏:70 手机版
解决时间 2021-02-09 10:34
- 提问者网友:不爱我么
- 2021-02-09 04:09
35×38+35×62+65×39+35×399 简便方法
最佳答案
- 五星知识达人网友:舊物识亽
- 2021-02-09 04:34
35×38+35×62+65×39+35×399
=35*(38+62+399)+65*39
=35*499+65*39
=35*500-35*1+65*40-65*1
=17500-35+2600-65=14900-100=14800
=35*(38+62+399)+65*39
=35*499+65*39
=35*500-35*1+65*40-65*1
=17500-35+2600-65=14900-100=14800
全部回答
- 1楼网友:风格不统一
- 2021-02-09 07:54
=35*(38+62)+39*(65+35)
=35*100+39*100
=3500+3900=7400
=35*100+39*100
=3500+3900=7400
- 2楼网友:三千妖杀
- 2021-02-09 06:29
20000
- 3楼网友:十鸦
- 2021-02-09 05:29
35X38+35x62+65x39+35x39
=(38+62)x35+(65+35)x39
=100x35+100x39
=(35+39)x100
=7400
=(38+62)x35+(65+35)x39
=100x35+100x39
=(35+39)x100
=7400
- 4楼网友:旧脸谱
- 2021-02-09 04:52
35×(38+62)+65×(40-1)+35×(400-1)
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