360÷5ⅹ9这道题目怎样用简便方法运算

2025-06-20 13:48:52
推荐回答(2个)
回答1:

把9放到前面来乘,360x9÷5=36x10x9÷5=36x9x10÷5=4x9x9x2=8x81=648

回答2:

360÷5×9
=72×9
=8×9×9
=8×81
=648