北师大版一年级学上册《背土豆》PPT课件.ppt
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* 北师大版一年级数学上册 = + 5 2 7 7 1 6 1 6 2 5 3 4 4 3 5 2 6 1 7 0 7 - 6 = 7 – 3 = 7 – 1 = 7 – 0 = 7 – 7 = 7 – 5 = 2 6 0 4 7 1 + = + = - = 7 2 5 3 4 7 7 3 4 - = - = 7 2 5 7 5 2 + = - = 4 3 7 + = - = 3 4 7 7 4 3 7 3 4 3 + 4 = 2 + 5 = 7 + 0 = 3 + 3 = 6 + 1 = 7 – 2 = 7 – 7 = 7 – 3 = 2 + 2 = 4 + 2 = 7 7 7 0 4 7 6 5 4 6 *
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