20以内加减法口算题
13-6= 8+9= 11-7= 6+9= 17-9=
13-6= 14-5 = 15-6= 12-9= 12+8=
11-9= 4+8= 16-4= 7+9= 16-7=
2+17= 12-8= 17-8= 18-1= 17-8=
15-7= 10-4 = 14+6 = 16-9= 1 5+5=
16-8= 14-7 = 12+8 = 8+6= 14-10 =
8+8= 14-9= 7+5= 14-4= 11+9 =
11-6= 17+1 = 15-8= 16+3= 5+8=
13-7= 18-5= 12-9= 8+7= 16-9=
7+9= 15-7= 11-4= 12-8= 17-9=
11-5= 9+5= 17-3= 9+9= 16-2=
7+6= 4+9= 14-3= 13-5= 14-7=
11-2= 13-4= 9-5= 8+5= 7+3=
10-7= 12-1= 14-6= 15-7= 11-3=
12+5= 13-7= 8+6= 7+4= 5+6=
15-6= 14-4= 10-10= 13-5= 7+6=
9+3= 10-0= 8+9= 9-5= 7+7=
8-2= 1+5= 7-6= 9+0= 12-8=
15-9= 7+9= 10-1= 6+7= 2+8=
9-8= 3+3= 8-3= 7-7= 12-6=
10+1= 13-1= 13-2= 13-3= 12-1=
12-2= 11-1= 16-0= 17-0= 18-0=
19-0= 20-0= 10+2= 18-6= 10+3=
10+6= 17-4= 17-5= 10+7= 15+4=
10+8= 15-4= 15-3= 10+9= 14-2=
16-2= 13+3= 13+4= 18-8= 17-1=
11+2= 19-8= 11+4= 16-5= 16-6=
15-1= 15-2= 11+5= 11+6= 19-3=
11+7= 11+8= 18-2= 18-
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