简算101乘26.9减1.25乘26.9乘0.8

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简算101乘26.9减1.25乘26.9乘0.8简算101乘26.9减1.25乘26.9乘0.8简算101乘26.9减1.25乘26.9乘0.8101乘26.9减1.25乘26.9乘0.8=101×2

简算101乘26.9减1.25乘26.9乘0.8
简算101乘26.9减1.25乘26.9乘0.8

简算101乘26.9减1.25乘26.9乘0.8
101乘26.9减1.25乘26.9乘0.8
=101×26·9-26·9×(1.25×0.8)
=101×26·9-26·9×1
=26·9×(101-1)
=26·9×100
=2690