25×括号4⼀5-1⼀7括死乘以14等于多少

2024-11-30 22:06:18
推荐回答(5个)
回答1:

回答2:

简便计算
2/7×(14-7/24)=2/7×14-2/7×7/24
=4-1/12
=3又11/12

回答3:

=25×4/5×14-1/7×14×25
=20×14+2×25
=280+50
=330

回答4:

25×(4/5-1/7)×14
=25×14×4/5-25×14×1/7
=280-50
=230

回答5:

25×(4/5-1/7)x14
=25x4/5x14-25x1/7x14
=20x14-25x2
=280-50
=230