37×42+37×39+37最简便的方法?

2025-04-01 03:31:53
推荐回答(2个)
回答1:

37×42+37×39+37
=37x(42+39+1)
=37x82
=37x(80+2)
=37x80+37x2
=2960+74
=3034

回答2:

原式=37×(42+39+1)
=37×80+37×2
=2960+74
=3034