34.5×76.5×-345×6.42-123×1.45 要简算
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34.5×76.5×-345×6.42-123×1.45 要简算
![34.5×76.5×-345×6.42-123×1.45 要简算](/uploads/image/z/4180150-46-0.jpg?t=34.5%C3%9776.5%C3%97%EF%BC%8D345%C3%976.42%EF%BC%8D123%C3%971.45+%E8%A6%81%E7%AE%80%E7%AE%97)
34.5×76.5-345×6.42=34.5×76.5-34.5×64.2=34.5×12.3
34.5×12.3-123×1.45=34.5×12.3-12.3×14.5=12.3×20=246
34.5×12.3-123×1.45=34.5×12.3-12.3×14.5=12.3×20=246
34.5×76.5×-345×6.42-123×1.45 要简算
34.5*76.5-345*6.42-123*1.45
34.5*76.5-123*1.45-345*6.42如何简算?
34.5×76.5-345×6.42-123×1.45(简便算法)
34.5乘76.5-345乘6.42-123乘1.45
34.5*76.5-345*6.42-123*1.45用简便方法怎算
请问“34.5乘76.5--34.5乘6.42-123乘1.45”怎样才能简便计算
34.5乘76.5减345乘6.42减123乘1045简便方法
(1000+123+234)×(123+234+345)-(1000+123+234+345)×(123+234)
(1+123+234)×(123+234+345)-(1+123+234+345)×(123+234)
计算123+234+345+456+567+678+789/12.3+23.4+34.5+45.6+56.7+67.8+
简便计算:123×56+45×123-123