8x27ⅹ5ⅹ2用乘法分配律怎么做?

2024-12-17 02:41:10
推荐回答(1个)
回答1:

8X27X5X2
=27X8X(5X2)
=27X80
=(30-3)X80
=30X80-3X80
=2400-240
=2160