82×0.99简便计算

问题描述:

82×0.99简便计算

82乘以(0.99+0.01)减去82乘以(1-0.99)=81.18

82×0.99
= 82×(1 - 0.01)
= 82 - 0.82
= 81.18

82×0.99
=82×(1-0.01)
=82×1-82×0.01
=82-0.82
=81.18

82x1-82x0.01