475+563-165-253
2000-366-534
475+563-165-253
=475-165+563-253
=310+310
=620
祝学习进步
望采纳 谢谢
=475-165+563-253
=310+310
=620
祝学习进步
望采纳 谢谢
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第1个回答 2020-03-05
475+563-165-253
=475-165+(563-253)
=310+310
=620
2000-366-534
=2000-(366+534)
=2000-900
=1100
=475-165+(563-253)
=310+310
=620
2000-366-534
=2000-(366+534)
=2000-900
=1100
