第1个回答 2020-06-12
▲936-867-99+267
=936-100+1-867+267
=836+1-600
=237
▲537-(543-163)-57
=537+163-543-57
=700-600
=100
▲36x(468÷9)
=36x468/9
=4x468
=1872
▲58÷17x34
=58x34/17
=58x2
=116
▲84x(25x37)
=21x4x25x37
=21x37x100
=3x7x37x100
=3x259x100
=77700
▲68x36+36+31x36
=36x(68+1+31)
=36x100
=3600
第2个回答 2020-06-12
936-867-99+267=936-600-267-100+1+267=937-700=237
537-(543-163)-57=537-543+163-57
=(537+163)-(543+57)=700-600=100
36×(468+9)=36×477=36×(500-23)
=36×500-36×23=18000-36×(20+3)
=18000-(36×20+36×3)=18000-(720+108)
=18000-828=17172
58÷17×34=58×(34÷17)=58×2=116
84×(25×37)=84×25×37=(80+4)×25×37=(80×25+4×25)×37=(2000+100)×37
=2000×37+100×37=74000+3700=77700
68×36+36+31×36=36×(68+1+31)
=36×100=3600
谢谢采纳
537-(543-163)-57=537-543+163-57
=(537+163)-(543+57)=700-600=100
36×(468+9)=36×477=36×(500-23)
=36×500-36×23=18000-36×(20+3)
=18000-(36×20+36×3)=18000-(720+108)
=18000-828=17172
58÷17×34=58×(34÷17)=58×2=116
84×(25×37)=84×25×37=(80+4)×25×37=(80×25+4×25)×37=(2000+100)×37
=2000×37+100×37=74000+3700=77700
68×36+36+31×36=36×(68+1+31)
=36×100=3600
谢谢采纳
第3个回答 2020-06-12
有几个还算是好方法，先收藏起来吧！
第4个回答 2020-06-12
抄的时候再检查下？我没有查
第5个回答 2020-06-12
这道题应用简便方法。
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