89.3x43+38x89.3+893x1.9用简便运算怎么算?

2024-11-24 11:08:58
推荐回答(1个)
回答1:

89.3x43+38x89.3+893x1.9
=89.3x43+38x89.3+89.3x19
=89.3×(43+38+19)
=89.3×100
=8930