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$整理和复习 1.68123长宽高2.6正方相 等12相等3.立方厘米立方分米立方 米升毫升100010004.不规则物体 5.0.50.52960400000400000600 600 dm cm g cm L m'3 1.×2.×3.×4.V5.V 1.C2.B3.B4.C 四、解:把阴影部分展开,就变成了一个长方形,它的 面积是200平方厘米,长是12+8=20(厘米), 要算这个长方形的宽就用200÷20=10(厘米) 长方形的宽也就是这个长方体的宽。12+8= 20(厘米)200÷20=10(厘米) 12×10×8=960(立方厘米)