早教吧 育儿知识 作业答案 考试题库 百科 知识分享

下面各题,怎么简便就怎么算.637-198797+436327-96-104267+33+109500÷25×4375-125+25

题目详情
下面各题,怎么简便就怎么算.
637-198
797+436 327-96-104
267+33+109 500÷25×4 375-125+25
▼优质解答
答案和解析
①637-198
=637-200+2
=437+2
=439;

②797+436
=(800-3)+437
=800+437-3
=1237-3
=1234;

③327-96-104
=327-(96+104)
=327-200
=127;

④267+33+109
=300+109
=409;

⑤500÷25×4
=20×4
=80;

⑥375-125+25
=375-(125-25)
=375-100
=275.