文档介绍：10以内减法
1-1= 2-1= 2-2=
3-1= 3-2= 3-3=
4-1= 4-2= 4-3= 4-4=
5-1= 5-2= 5-3= 5-4= 5-5=
6-1= 6-2= 6-3= 6-4= 6-5= 6-6=
7-1= 7-2= 7-3= 7-4= 7-5= 7-6= 7-7=
8-1= 8-2= 8-3= 8-4= 8-5= 8-6= 8-7= 8-8=
9-1= 9-2= 9-3= 9-4= 9-5= 9-6= 9-7= 9-8= 9-9=
10-1= 10-2= 10-3= 10-4= 10-5= 10-6= 10-7= 10-8= 10-9= 10-10=
20以内减法
11-1= 11-2= 11-3= 11-4= 11-5= 11-6= 11-7= 11-8= 11-9= 11-10=
12-2= 12-3= 12-4= 12-5= 12-6= 12-7= 12-8= 12-9= 12-10=
13-3= 13-4= 13-5= 13-6= 13-7= 13-8= 13-9= 13-10=
14-4= 14-5= 14-6= 14-7= 14-8= 14-9= 14-10=
15-5= 15-6= 15-7= 15-8= 15-9= 15-10=
16-6= 16-7= 16-8= 16-9= 16-10=
17-7= 17-8= 17-9= 17-10=
18-8= 18-9= 18-10=
19-9= 19-10=
20-10=
10以内加法口诀
1+ 1=
1+ 2= 2+ 2=
1+ 3= 2+ 3= 3+ 3=
1+ 4= 2+ 4= 3+ 4= 4+ 4=
1+ 5= 2+ 5= 3+ 5= 4+ 5= 5+ 5=
1+ 6= 2+ 6= 3+ 6= 4+ 6= 5+ 6= 6+ 6=
1+ 7= 2+ 7= 3+ 7= 4+ 7= 5+ 7= 6+ 7= 7+ 7=
1+ 8= 2+ 8= 3+ 8= 4+ 8= 5+ 8= 6+ 8= 7+ 8= 8+ 8=
1+ 9= 2+ 9=