加减法简便运算?

475+563-165-2532000-366-534
2025-04-16 15:30:47
推荐回答(2个)
回答1:

475+563-165-253
=475-165+563-253
=310+310
=620
祝学习进步
望采纳 谢谢

回答2:

475+563-165-253
=475-165+(563-253)
=310+310
=620
2000-366-534
=2000-(366+534)
=2000-900
=1100