(38+219)x62的简便方法?

2025-06-27 20:25:17
推荐回答(2个)
回答1:

(38+219)ⅹ62 =257x62 =15934 答:有括号,先算括号里面的,再算乘法

回答2:

(38+219)X62
=257X60+257X2
=250X60+7X60+250X2+7X2
=15000+420+500+14
=15000+934
=15934