一年级下册十几减九精装版.ppt

9+6=,9+7=,9+3=,15,16,12,9+8=,17,9+4=,13,9+5=,14,9+2=,11,9+（）=12,3,水果店,我买个。,还剩多少个？,12-9=3（只）,树上原来有14只小鸟，,飞走了9只小鸟。,原来有1个松果，小松鼠搬走了9 个。,14-9=5（只）,15-9=6（个）,跳木桩,=,给、或=找个家。12-9 4 11-9 11+913-3 13-9 18-9 9,139,8,3,7,5,2,4,6,159,149,189,179,129,119,169,139,8,3,7,5,2,4,6,159,149,189,179,129,119,169,139,8,3,7,5,2,4,6,159,149,189,179,129,119,169,8,3,7,5,2,4,6,159,149,189,179,129,119,169,139,8,3,7,5,2,4,6,159,149,189,179,129,119,169,139,8,3,7,5,2,4,6,159,149,189,179,129,119,169,139,8,3,7,5,2,4,6,159,149,189,179,129,119,169,139,8,3,7,5,2,4,6,159,149,189,179,129,119,169,139,8,3,7,5,2,4,6,159,149,189,179,129,119,169,139,8,3,7,5,2,4,6,159,149,179,129,119,169,139,189,13-9,14-9,15-9,胜利,19-9,17-9,12-9,11-9,18-9,20-9,（）-9=5,16-9,入口,11 9=2,12 9=3,13 9=4,14 9=5,15 9=6,16 9=7,17 9=8,18 9=9,11 9=212 9=313 9=414 9=515 9=616 9=717 9=818 9=9,