第1个回答 2020-07-04
这个问题用常规算法即可。
=674－17×20
=674－340
=334
望采纳！
=674－17×20
=674－340
=334
望采纳！
第2个回答 2020-07-04
674一153÷9x20
=674一（90+63）÷9x20
=674一（10+7）x20
=674-17x20
=674-340
=334本回答被网友采纳
=674一（90+63）÷9x20
=674一（10+7）x20
=674-17x20
=674-340
=334本回答被网友采纳
第3个回答 2020-07-04
674-153÷9×20
=674-17×20
=674-340
=640-340+34
=300+34
=334
=674-17×20
=674-340
=640-340+34
=300+34
=334
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