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98 37简便计算

98*37 =(100-2)*37 =100*37-2*37 =3700-74 =3626

98*37=(100-2)*37=3700-74=362610+11+12+13+14+15+16+17+18+19+20=(10+20)+(11+19)+..(14+16)+15=30*5+15=165

37x98 =37x(100-2) =37x100-37x2 =3700-74 =3626

98*37=(100-2)*37=100*37-2*37=3700-74=3626

100*37-2*37(望采纳)

37 98?37*98=37*(100-2)=3700-74=3626

98x37=(100-2)x37=3700-74=3626

37里面先减个2剩35,98+2=100,再加上35.

37*98=37*100-2=37*100-37*2=3700-74=3626

98*37+39=(100-2)*37+39 =100*37-2*37+39 =3700-37-37+39 =3700-35 =3665

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