5/8*33+66*62.5%+0.652怎么简便计算

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5/8*33+66*62.5%+0.652怎么简便计算
5/8*33+66*62.5%+0.652怎么简便计算

5/8*33+66*62.5%+0.652怎么简便计算
5/8*33+66*62.5%+0.652
=0.625×33+66×0.625+0.652
=0.625×33(1+2)+0.652
=0.625×99+0.652
=0.625(100-1)+0.652
=62.5-0.625+0.652
=62.527
你的题目里的0.652应该是0.625吧?

5/8*33+66*62.5%+0.652…………变一变就简便(因为,5/8=62.5%,0.652=62.5%)
=62.5%×33+66×62.5%+62.5%×1
=62.5%×(33+66+1)
=62.5%×100
=6250

5/8*33+66*62.5%+0.625
=0.625*33+66*0.625+0.625*1
=0.625*(33+66+1)
=0.625*100
=62.5