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2x23x35的简便计算

23X(2Ⅹ35)

22*35=(20+2)*35=20*35+2*35=700+70=770

我只道只要等于3500就对

99x35x35用简便方来法应该这自样计知算: 99x35x35 =(100-1)道x35x35 =100x35x35-35x35 =35x3500-35x35 =(40-5)x3500-(40-5)x35 =40x3500-5x3500-40x35+5x35 =140000-17500-1400+175 = 121275

125*32*35=125x4x4x2x35=(125x8)x(4x35)=1000x140=140,000

35乘100

1.01*35=(1+0.01)*35=1*35+0.01*35=35+0.35=35.35

14*35=7*2*35=7*(2*35)=7*70=490

98*35=(100-2)*35=100*35-2*35=3500-70=3430

15.05÷35=15.05÷5÷7=3.01÷7=0.43

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