计算下面各题，能简算的要简算．5.95÷（1.2+0.5）×5 75÷（0.75×4）0.8×0.68×125 73.5×0.1+7.35×9．
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递等式计算+=+=﹣=﹣= 1﹣=+﹣= 1﹣+．
直接写出得数．===== 1﹣=
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25×8= 8.5﹣3.7= 0.56÷0.07= 4×9.2×0.25======
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