7.4×5.6+7.6×5.4-7.4=( )简便计算怎么做

2025-01-01 18:03:41
推荐回答(1个)
回答1:

7.4×5.6+7.6×5.4-7.4
=7.4(5.6+5.4)-7.4
=7.4*11-7.4
=7.4*(11-1)
=7.4*10=74