3.35*99*2+6.7怎么简便
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3.35*99*2+6.7怎么简便
=99*3.35*2+6.7
=99*6.7+6.7
=6.7*(99+1)
=6.7*100
=670
3.35×2=6.7,6.7×99+6.7乘法分配率,6.7×(99+1)=6.7×100=670
3.35*99*2+6.7怎么简便
=99*3.35*2+6.7
=99*6.7+6.7
=6.7*(99+1)
=6.7*100
=670
3.35×2=6.7,6.7×99+6.7乘法分配率,6.7×(99+1)=6.7×100=670