。。。。
做一个进行简便计算,101=100+1,这样的话计算起来会简便一些。
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第1个回答 2020-06-08
35×9 65×101的简便计算?
解:35×9+65×101
=35x9+(35+30)x101
=35x9+35x101+30x101
=35x(9+101)+30x101
=35x110+3030
=35x(100+10)+3030
=3500+350+3030
=3850+3030
=6880
解:35×9+65×101
=35x9+(35+30)x101
=35x9+35x101+30x101
=35x(9+101)+30x101
=35x110+3030
=35x(100+10)+3030
=3500+350+3030
=3850+3030
=6880
第2个回答 2020-06-08
35x(10-1)
=35x10-35x1
=350-35
=315
65x(100+1)
=65x100+65x1
=6500+65
=6565
=35x10-35x1
=350-35
=315
65x(100+1)
=65x100+65x1
=6500+65
=6565
第3个回答 2020-06-08
35*(10-1)
=350-35
=315
65*(100+1)
=6500+65
=6565
=350-35
=315
65*(100+1)
=6500+65
=6565
第4个回答 2020-06-08