脱式计算．
①2.7+3.1+2.9+3.2 ②0.44×8.3+8.3×0.56
③12.53﹣1.35×2﹣9.3 ④25×32×0.5．
脱式计算．
①2.7+3.1+2.9+3.2 ②0.44×8.3+8.3×0.56
③12.53﹣1.35×2﹣9.3 ④25×32×0.5．
试题篮
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