630除以14,怎样简便怎样算

2024-11-24 06:16:43
推荐回答(3个)
回答1:

630÷14
=630÷(7x2)
=630÷7÷2
=90÷2
=45

回答2:

630÷14
=630÷(7x2)
=630÷7÷2
=90÷2
=45

回答3:

630÷14
=630÷7ⅹ2
=90÷2
=45