20以内不进位不退位加减法
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2
20以内不进位不退位加减法（1）
15+1= 2+6= 14+4= 4+4= 9-8= 19-5= 15-5= 5+13= 5-2= 10-6= 7-6= 17-5= 10-6= 1+5= 14-3= 8-2= 2+2= 5+3= 1+9= 16-3= 17-3= 15+2= 12+5= 3+13= 12+2= 2+7= 1+12= 4+3= 3+7= 3+5= 8-4= 18-6= 4-1= 15-4= 6-1= 19-2= 4+3= 16-2= 4+15= 3+5= 13+7= 11+1= 17-6= 2+3= 11+1= 8+2= 5+5= 17-2= 8-4= 13+6= 19-3= 3+2= 6-3= 17-6= 2+8= 4+6= 13+5= 1+5= 18-4= 13+4= 4+5=
15-5= 2+12=
2+3= 18-4=
1+9= 1+9=
18-7= 1+3=
11+6= 18-2=
10-1= 10-7=
10-3= 9+1=
5-1= 17+1=
17-5= 8-2=
10-6=
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5
10-3=
3+6= 7-4= 10-2= 7+2=
10-3= 6-3= 7-6= 3+1=
3+5= 9-4= 4-1= 1+2=
1+8= 1+3= 8+2= 9+1=
2+8= 3+1= 7-4= 10-8=
1+1= 2+3= 3+2= 10-2=
2+2= 5+3= 3+6= 2+3=
10-5= 1+9= 4+2= 8-4=
1+8= 10-6= 5+3= 6-4=
2+3= 4-2= 8-5= 13-1= 12+4= 19+1= 19-7= 1+1= 5+3= 3+7= 4+6= 16-5= 13+1= 1+6= 19-2= 1+8= 3-2= 19-5= 12+5= 4-3= 19-5= 4+4= 11+4= 4+14=
15-5= 1+3=
16-4= 14+2=
4-3= 8-6=
9-4= 17-2=
15+5= 10-6=
16-4= 12-1=
7+3= 11+6=
2+13= 5+3=
1+6=
5-4=
2+7=
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6
6+13= 16-2= 3+2= 10-8= 1+15= 12+5= 13+4= 19-5= 7-5= 19-5= 5-3= 18-2= 17-3= 1+6= 18-6= 7-6= 10-6=
18-8= 10-9= 5+11= 10-2=
15+3= 3+2= 13-2= 6+4=
10-2= 13+2= 5+4= 8-6=
7-1= 5+4= 8-7= 17+3=
6-1= 10-5= 16-5= 9-8=
15-3= 2+8= 7-5= 6-2=
5+1= 4-3= 5+13= 2+14=
3-2= 19-5= 18-5= 6-4=
12+8= 10-5= 14-3= 19-1=
1+8= 6-3= 7+1= 1+4=
17-2= 14+1= 13-1= 9+1=
2+6= 4+1=
3+4= 9-8=
9-5= 5-1=
5+3= 5-2=
10-6= 10-6=
4-1= 10-6=
1+5= 4-3=
8-2= 2+2=
5+3= 1+9=
6-3=
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7
7-3=
5+2= 2+5= 3+3= 2+2=
2+7= 1+2= 4+3= 3+7=
3+5= 8-4= 8-6= 4-1=
5-4= 6-1= 9-2= 4+3=
6-2= 4+5= 3+5= 3+7=
1+1= 7-6= 2+3= 1+1=
8+2= 5+5= 7-2= 8-4=
3+6= 9-3= 3+2= 6-3=
7-6= 2+8= 4+6= 3+5=
1+5= 8-4= 3+4= 4+5=
5-1= 2+2= 2+3= 8-4=
1+9= 1+9= 8-7= 1+3=
1+6= 8-2= 10-1= 10-7=
10-3= 9+1= 5-1= 7+1=
7-5= 8-2= 10-6= 2+8=
5+3= 3+6=
7-4= 7-1=
6+2= 9+1=
5-3= 10-1=
9-2= 1+2=
6+2= 5+5=
6+1= 1+9=
7-2= 10-1=
5-3= 3+1=
3+7=