77.5*3.6+7.75*63+7.75简算
问题描述:
77.5*3.6+7.75*63+7.75简算
答
77.5x3.6+7.75x63+7.75
=77.5x3.6+77.5x6.3+77.5x0.1
=77.5x(3.6+6.3+0.1)
=77.5x10
=775
答
77.5*3.6+7.75*63+7.75
=7.75*36+7.75*63+7.75
=7.75*(36+63+1)
=7.75*100
=775