2⼀3-3⼀8+1⼀3-5⼀8用简便方法计算等于多少?

2024-12-04 21:42:19
推荐回答(3个)
回答(1):

2/3-3/8+1/3-5/8

=(2/3+1/3)-(3/8+5/8)

=1-1

=0

回答(2):

用交换律和结合律简算
原式=2/3+1/3-(3/8+5/8)
=1-1
=0

回答(3):

简便计算
2/3-3/8+1/3-5/8
=(2/3+1/3)-(3/8+5/8)
=1-1
=0