18.25*5分之59-11.8*4分之69 简便方法计算.

问答/298℃/2025-03-17 05:44:12

优质解答：

18.25*5分之59-11.8*4分之69

=3.65*59-2.95*69

=3.65*59-2.95*59-2.95*10

=（3.65-2.95）*59-29.5

=0.7*59-29.5

=41.3-29.5

=11.8

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