630×(20÷7)用简便计算怎么做?

2025-03-11 01:05:06
推荐回答(2个)
回答1:

简便计算
630×(20÷7)
=(630÷7)x20
=90x20
=1800

回答2:

630x(20÷7)
=630÷7x20
=90x20
=1800