125十125x7相等的算式是_百度作业帮
125十125x7相等的算式是
125十125x7相等的算式是
=125x〔1+7〕=125x8=1000
先乘除,后加减,有括号就先算括号的
你当我没说@( ̄- ̄)@51×111+777×7(简算)(要算式)_百度知道
51×111+777×7(简算)(要算式)
提问者采纳
= 51×111 + 111×7×7= 111×(51 + 7×7)= 111×100= 11100
提问者评价
太给力了,你的回答完美解决了我的问题!
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解:=51×111+111×7×7=(51+49)×111=100×111=11100
=51*111+111*49=111*(51+49)=111*100=11100
51x111+(111x7)x7=51x111+111x49=111x(51+49)=111x100=11100
=(51+7*7)*111
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出门在外也不愁(1)125X7十125(2)25X48(3)69X101用简便方法计算_百度知道
(1)125X7十125(2)25X48(3)69X101用简便方法计算
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125+125×7=125×1+125×7=125×(1+7)=125×8=1000
(2)25*48=25×4×12=100×12=1200
(3)69x101=69x(100+1)=69x100+69x1=6900+69=6969
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出门在外也不愁111X37 用简便运算怎么算_百度作业帮
111X37 用简便运算怎么算
111X37 用简便运算怎么算
111X37=+11111x37=11111x(63+37)==1111100
()x7+(11x7)
接着等于()+(77) 札ywT椎/}1Pcp破4K$>sFI*ABR孕87x$
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