8.6×44+56×18.6巧算

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8.6×44+56×18.6巧算8.6×44+56×18.6巧算8.6×44+56×18.6巧算8.6×44+56×18.6=8.6×44+56×(10+8.6)=8.6×44+56×10+56×8.

8.6×44+56×18.6巧算
8.6×44+56×18.6巧算

8.6×44+56×18.6巧算
8.6×44+56×18.6
=8.6×44+56×(10+8.6)
=8.6×44+56×10+56×8.6
=8.6×(44+56)+560
=8.6×100+560
=1420

8.6*(44+56*10)

所得税法大赛的