53.5*35.3+5.35*657-53.5怎么简便运算

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53.5*35.3+5.35*657-53.5怎么简便运算53.5*35.3+5.35*657-53.5怎么简便运算53.5*35.3+5.35*657-53.5怎么简便运算53.5*35.3+5.3

53.5*35.3+5.35*657-53.5怎么简便运算
53.5*35.3+5.35*657-53.5怎么简便运算

53.5*35.3+5.35*657-53.5怎么简便运算
53.5*35.3+5.35*657-53.5
=53.5*35.3+53.5*65.7-53.5
=53.5*(35.3+65.7-1)
=53.5*100
=5350

=53.5*35.3+53.5*65.7-53.5
=53.5*(35.3+65.7-1)
=53.5*100
=5350