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五年级数学下册1.1《折纸》课件2北师大版.ppt

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答：他俩一共用了这张纸的 。,答：他俩一共用了这张纸的 。,1.填一填。,2.淘气是这样计算 的： 。你同意他的方法吗？与同伴交流你的想法。,3.,4.,5.森林医生。,6.解方程。,7.根据学校气象小组的记录，当地9月份雨天天数占全月总天数的 ，晴天天数占全月总天数的 。请你提出一个数学问题，并尝试解答。,8.估一估，连一连，下列算式结果与哪个数最接近？算一算。,你学到了什么？,

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