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简便计算题56x98十112

28x98+56 =28x98+28x2 =28x(98+2) =2800

112x98 =112x(98+2)-112 x2 =11200-224 =10976

28×98+56 =28×(98+2) =28×100 =2800 你好,本题已解答,如果满意 请点

365x98 =365x100-365x2 =36500-730 =35770 朋友,请及时

125x98 =125×(100-2) =125×100-125×2 =12500-250

16x98+32 =16X98+16x2 =16X(98+2) =16X100 =1600

101X98一98 =101X98一98x1 =98x(101-1) =98×100 =98

0.78*98的简便计算方法 0.78*100-0.78*2=78-1.56=76.44 简便计算是

0.78×98可以使用乘法分配律进行简便运算: 0.78×98 =0.78×(100-2) =0.7

85x98 =85x(100-2) =85x100-85x2 =8500-170 =8330

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