简便运算:65×98
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简便运算:65×98简便运算:65×98简便运算:65×98(100-2).65=100.65-2.65=6500-130=637065×100-65×2=647065×98=65×﹙100-2﹚=6
简便运算:65×98
简便运算:65×98
简便运算:65×98
(100-2).65
=100.65-2.65
=6500-130
=6370
65×100-65×2=6470
65×98
=65×﹙100-2﹚
=6500-130
=6370
65X(100-2)
65X100一65x2
6500一130
6370