5道较简单的脱式计算急,

问题描述:

5道较简单的脱式计算
急,

456+986+987
=
=
876+987+654
=
=

158+262+138
375+219+381+225
5001-247-1021-232
(181+2564)+2719
(937+236)-(547-224)
答案在下面
(1)558
(2)1200
(3)3501
(4)5464
(5)850