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65x99+65的简便算法

65×99+65 =65×99+65×1 =65×(99+1) =65×100 =6500

65x100一65十65=6500

65x99 =65x(100-1) =65x100-65x1 =6500-65 =6435

65x99+65 =65×(99+1) =65×100 =6500

65×99 =65×(100-1) =65×100-65 =6500-65 =6435

递等式计算 0.65x99 =0.65x(100-1) =0.65x100-0.65 =65-0.65 =64.35

65×99+65 =65×(99+1) =65×100 =6500 你好,本题已解答,如果满意,请点右上角“采纳答案”,支持一下。

=3.65✘(99+1) =3.65✘100 =356

65x99 =65x(100-1) =65x100-65x1 =6500-65 =6435

5.65×(99+1) =5.65×100 565

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