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125x101的简便方法计算

125x101一125=125X(101-1)=125X100=12500

125x81用简便方法计算有2种 =125*(80+1) =125*80+125*1 =10000+125 =10125125*81 =(100+20+5)*81 =100*81+20*81+5*81 =8100+1620+405 =10125

125*56=125*8*7=1000*7=7000 亲,利用乘法结合律.

=125乘以4乘以6 =500乘以6 =3000

解析:首先把72拆分成8乘以9,然后用0.125乘以8,得出的积再乘以9即可.0.125 *72= 0.125 *8 *9(72拆分成8乘以9)= 1* 9(0.125 乘以8的积,再乘以9 )= 9

125x888=125 x 8 x111=1000 x111=111000

125x72=125 x 8 x 9=1000 x 9=9000 希望我的回答对您有帮助,满意请采纳,谢谢.

=(125*8)*(4*25)*(5*20)*26 =1000*100*100*26 =260000000

125x56=125*(8*7)=125*8*7=1000*7=7000

275X101的简便计算;275X101=275*(100+1)=275*100+275*1=27500+275=27775

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