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Copyright 2004-2009,版权所有 盗版必究,一年级数学上册,9加几,森林联欢会,一共有多少个汽球？,9,+,5,=,1,4,10,14,凑十法,一共有多少只蝴蝶？,9 +4 =,1,3,13,凑十法,10,先圈出,10,个,再算一算,9+5=,14,9 +=,3,12,9,8,17,10,9,3,12,+,=,1,2,1,6,10,9,7,16,+,=,9+1+1=,9+2=,9+1+4=,9+5=,9+1+8=,9+9=,11,11,14,14,18,18,你有什么有趣的发现吗？,11,12,13,15,16,17,18,9+4,2+9,9+9,9+6,7+9,9+3,9+8,14,9+5,森林联欢会,拍手游戏,9+6,4+9,8+9,9+5,9+7,9+9,9+3,2+9,=,11,=,12,=,13,=,14,=,15,=,17,=16,=,18,9+6=,15,4+9=,13,8+9=,17,9+5=,14,9+7=,16,9+9=,18,9+3=,12,2+9=,11,4+9=,13,9+6=,15,9+3=,12,9+5=,14,8+9=,17,9+7=,16,9+9=,18,2+9=,11,9+2,9+3,9+4,9+5,9+6,9+7,9+8,9+9,=,12,=,11,=,13,=,18,=,14,=,15,=,16,=,17,9+4,=,13,9+3,=,12,9+5,=,14,凑十法,8+2=,8+3=,8+5=,7+3=,7+4=,7+6=,
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