用简便方法计算下面各题.
(0.86+0.86+0.86+0.86)×25 4÷1+6×
125÷(50÷8) 7.6×÷[1.9﹣1.9×(1.9﹣1.9)].
用简便方法计算下面各题.
(0.86+0.86+0.86+0.86)×25 4÷1+6×
125÷(50÷8) 7.6×÷[1.9﹣1.9×(1.9﹣1.9)].
试题篮
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