手工纸剪小树数学题:用一张长45cm、宽21cm的手工纸,能剪几棵这样的小树?
- 时间:2020-04-27 15:03:15
- 分类:数学世界
- 阅读:150 次
手工纸剪小树数学题:
(1)右图是一张手工纸剪的小树,
它的面积是多少?(单位:cm)
(2)*用一张长45cm、宽21cm的手工纸,
能剪几棵这样的小树?
[最新人教版五年级上册第105页第9题]
数学题解答:
第(1)小题,是计算组合图形“小树”的面积,小树由一个三角形、两个梯形、一个长方形组成,分别算出面积后相加即可。需要注意的是看清题中所给出的条件,不要弄错。

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