简便计算题六年级:2⼀5÷4⼀15-2⼀5= 6⼀7×5⼀8+3⼀8÷7⼀6= (7

2024-11-16 16:49:43
推荐回答(1个)
回答1:

4/5+3+2/3×4/5
=4/5*(1+2/3)+3
=4/5*5/3+3
=3+4/3
=13/3

(7/11-3/8)×88
=88*7/11-3/8*88
=56-33
=23