13⼀10-5⼀6+7⼀10+1⼀6用简便方法

2025-06-27 21:29:00
推荐回答(5个)
回答1:

13/10-5/6+7/10+1/6
=(13/10+7/10)-(5/6-1/6) 交换 结合
=2-4/6
=4/3

回答2:

13/10-5/6+7/10+1/6
=13/10+7/10-5/6+1/6
=2-(5/6-1/6)
=2-2/3
=1又1/3

回答3:

13/10-5/6+7/10+1/6
=(13/10+7/10)-(5/6-1/6)
=2-2/3
=4/3

回答4:

13/10-5/6+7/10+1/6
=13/10+7/10-5/6-1/6+2/6
=(13/10+7/10)-(5/6+1/6)+1/3
=2-1+1/3
=1+1/3
=4/3

回答5:

13/10-5/6+7/10+1/6
=(13/10+7/10)-(5/6-1/6)
=20/10 -4/6
=2-2/3
=4/3