7-3-1= 11-9-2= 6+2+10= 3+5+9= 6+3+7= 18-5-7= 2+10+7= 2+7+10= 9+6+1= 8-2-3= 10-7-3= 8+5+3= 18-3-8= 3+6+6= 20-10-8= 15-2-9= 7+10+1= 9+2+4= 17-1-8= 7+6+4= 10+2+7= 15-2-2= 18-10-8= 6+6+5= 11-5-1= 6+10+2= 1+8+4= 12-1-6= 20-10-1= 20-5-8= 10-2-2= 3+9+1= 9-2-1= 5+1+10= 6+8+1= 17-3-7= 6+9+3= 10-3-6= 9+4+6= 16-5-1= 15-3-4= 3+5+2= 11-6-2= 1+5+8= 18-8-3= 17-4-4= 1+5+3= 8+1+10=
9+1+6= 20-9-10= 4+1+9= 4+3+8= 3+7+5= 5+6+2= 20-2-9= 17-7-9= 20-3-6= 11-2-9= 17-2-9= 16-9-6= 2+6+5= 3+9+5= 4+10+1= 1+9+10= 10-9-1= 17-8-6= 14-9-5= 8+7+1= 1+5+7= 2+3+9= 7-4-1= 1+3+8= 2+9+6= 8+5+7= 12-2-4= 20-6-2= 5+4+3= 20-8-6= 15-8-5= 5+6+9= 14-8-4= 14-3-6= 4+6+4= 6+3+1= 13-2-8= 7+7+2= 10+1+5= 19-5-6= 10+2+3= 13-9-3= 10-3-6= 18-7-7= 17-6-8= 5+8+1= 14-7-4= 3+7+2=
16-9-2= 3+10+5= 11-1-1= 10+2+8= 5+1+10= 17-9-5= 1+1+3= 1+3+2= 20-7-5= 1+3+5= 15-9-3= 12-7-2= 15-10-4= 7+2+4= 12-1-2= 11-4-4= 18-5-3= 19-8-2= 20-7-8= 17-8-3= 6+9+4= 12-8-4= 6-1-5= 3+7+5= 17-3-10= 18-2-7= 5+5+4= 17-2-1= 18-8-4= 3+6+7= 7+8+3= 16-3-5= 1+1+6= 16-5-9= 9-3-2= 1+4+2= 5-2-3= 10+3+3= 20-4-7= 13-2-9= 19-10-8= 14-7-4= 16-4-7= 5+7+4= 16-5-4= 20-5-9= 18-4-6= 4+8+8=
3+7+9= 12-6-1= 1+2+3= 8-4-1= 7+5+1= 5+8+4= 8-3-1= 17-5-2= 2+6+9= 9-5-3= 6+1+5= 5-1-3= 10+3+7= 4+8+8= 13-1-7= 10+1+5= 5+5+4= 9-8-1= 15-4-9= 8+6+4= 8+4+8= 3+2+9= 18-5-3= 8+10+1= 17-6-4= 1+10+4= 7+5+1= 20-5-9= 7+1+2= 1+7+3= 3+1+7= 13-3-6= 9+1+3= 7+6+4= 5+1+6= 12-2-4= 10-2-2= 20-2-1= 8+5+7= 18-2-7= 20-3-3= 18-9-6= 2+10+1= 4+1+8= 6-1-5= 18-6-5= 19-1-8= 2+4+3=
6+1+5= 4+1+1= 15-10-4= 1+6+6= 9+2+8= 16-10-3= 3+7+9= 1+7+10= 18-1-5= 5-1-3= 13-4-8= 13-7-3= 12-10-2= 15-2-10= 9+6+1= 6+2+6= 9+7+4= 20-9-7= 5+6+2= 5+3+5= 11-2-2= 13-2-9= 14-5-2= 9-5-2= 20-7-8= 6+3+4= 3+4+8= 17-9-1= 8-3-1= 10-4-6= 19-6-3= 7-4-1= 11-6-3= 17-8-3= 1+4+7= 10+3+3= 15-1-1= 10+8+1= 4+2+10= 15-3-7= 3+4+1= 2+9+5= 14-2-1= 6+5+7= 13-5-6= 8+1+10= 20-10-5= 9-3-3=
1+1+3= 5+1+7= 2+8+9= 6-2-1=
9+3+4= 17-10-6= 5+8+5= 15-9-4= 12-3-2= 9-4-4= 15-8-6= 1+9+10= 7+6+6= 16-4-1= 10-1-8= 15-2-6=
20-7-5= 1+3+5= 15-9-3= 12-7-2= 15-10-4= 7+2+4= 12-1-2= 11-4-4= 18-5-3= 19-8-2= 20-7-8= 17-8-3= 6+9+4= 12-8-4= 6-1-5= 3+7+5= 17-3-10= 18-2-7= 5+5+4= 17-2-1= 18-8-4= 3+6+7= 7+8+3= 16-3-5= 1+1+6= 16-5-9= 9-3-2= 1+4+2= 5-2-3= 10+3+3= 20-4-7= 13-2-9=
20以内加减混合练习题
6+7+1= 2+4+2= 7-5-2= 6+4+9=
2+9+9= 8+6+4= 12-2-8= 5+5+8=
5+4+6= 20-8-9= 15-9-2= 5+7+4=
14-9-2= 19-6-7= 4+6+8= 18-1-9=
4+2+10= 19-3-6= 20-7-7= 8-3-5=
5+7+8= 4+7+9= 2+6+1= 10+8+1= 8+8+4= 17-7-5= 5+5+4= 15-5-10= 17-8-7= 16-4-4= 20-6-3= 1+7+2= 7+3+4= 16-1-3= 16-6-3= 19-10-5=
3+4+7= 1+6+5= 12-10-1= 19-2-9=
5+10+2= 14-2-5= 1+3+9= 19-4-3= 15-4-8= 7+2+3= 9-1-2= 9-3-6=
