,看到每一组，还能想到什么？,1 7,2 6,5 3,1 8,2 7,2,6 3,5 4,3 6,4 5,8,9,6,4,9,8,9,8,8,9,7,7,6,6,5,5,4,8,8,7,7,6,6,5,5,8和9的加减法,2012年新人教版一年级上册数学全册课件下载页面：/thread-82341-1-1.html,5+3=,3+5=,83,85,8,8,5,3,5+4=,4+5=,94,95,9,9,5,4,9,9,6,3,8,8,6,2,8,4,8,8,7,1,9,9,7,2,9,9,8,1,1,5,2,4,2,8,3,4,1,3,5,7,6,8,9,5,9,5,5,4,8,6,8,6,6,2,8,6,4,2,0,7,5,3,1,9,7,5,3,1,8,6,4,2,0,6,+,5,=,8,9,-,8,=,1,2,+,7,=,9,
