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102乘99的简便运算

102×99 =(100+2)×99 =100×99+2×99 =9900+198 =10098

102×99简便方法计算 解: 102×99 =102×(100-1) =102×100-102×1 =10200-102 =10098

100*99+2*100-2=10098

102×99 =(100+2)×(100-1) =100×100-100×1+2×100-2×1 =10000-100+200-2 =10098

102×99 =(100+2)×99 =100×99+2×99 =9900+198 =10098 你好,本题已解答,如果满意,请点右上角“采纳答案”,支持一下。

102*(100-1) =102*100-102*1 =10200-102 =10098

102乘78的简便运算 102乘78 =78*(100+2) =78*100+78*2 =7800+156 =7956

85×102 =85×(100+2) =85×100+85×2 =8500+170 =8670

102乘15用简便方法计算 102乘15 =15*(100+2) =15*100+15*2 =1500+30 =1530

102乘5.2 =(100+2)x5.2 =520+10.4 =530.4 8.9乘56加11乘5.6 =8.9x56+1.1x56 =(8.9+1.1)56 =10x56 =560 9分之7除以5分之11加11分之5乘9分之2 =(7/9)x(5/11)+(5/11)x(2/9) =(7/9+2/9)x(5/11) =5/11 24乘(8分之5加6分之5) =24x(5/8)+24x(5/6) =3x...

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