长方体和正方体的体积教学PPT课件.ppt

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1、长方体和正方体的体积摆一摆4厘米1厘米1厘米长：厘米宽：厘米高：厘米411体积：立方厘米43厘米3122厘米224长方体的体积＝长×宽×高V＝abhhab一个长方体,长7cm,宽4cm,高3cm,它的体积是多少?V=abh=7×4×3=84(cm3)长方体的体积＝长×宽×高棱长棱长棱长棱长棱长棱长正棱长棱长棱长长方体的体积＝长×宽×高棱长棱长棱长aaaV=aaaV=a3一块正方体石料，棱长是６dm，这块石料的体积是多少立方分米？V=a3=63=6×6×6=216（dm3）答：这块石料的体积是216dm3。kj.mqxhjjmu.net/c03b/737.

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