1⼀4 2⼀9括号乘以36

2024-12-28 16:14:03
推荐回答(2个)
回答1:

(1/4+2/9)Ⅹ36
=1/4X36十2/9X36(运用乘法分配律)
=9+8
=17

回答2:

(1/4+2/9)×36
=36×1/4+36×2/9
=9+8
=17
(1/4-2/9)×36
=36×1/4-36×2/9
=9-8
=1
运用乘法分配律简便