269+67+331+233的简便运算

269+67+331+233的简便运算
2024-11-22 19:49:24
推荐回答(2个)
回答1:

269+67+331+233
=(269+331)+(67+233)
=600+300
=900

回答2:

(291+233)+(67+331)
=500+400
=900