口算练习（8）
13-4= 12-9= 9+8= 11-2= 11-8= 8-4= 8-5= 6+5= 7+4= 15-8= 16-9= 6+9= 2+1= 15-6= 11-5= 11-7= 7+5= 4+8= 4+9= 15-9= 11-9= 5+4= 12-6= 16-7= 14-5=
8-3=
15-8= 12-7= 18-9= 11-4= 14-8= 9+10= 13-6= 9+8= 15-7= 14-7= 11-3= 13-9= 11-2= 9+1= 9+4= 14-5= 9+6= 8+8= 8+5= 8+2= 11-8= 8+10= 9+2= 12-4= 17-8=
9+9=
12-3= 3+9= 7+6= 12-8= 8-7= 8-2= 11-3= 17-9= 8+7= 14-7= 17-8= 5+8= 12-5=
口算练习（9）12-9= 17-9= 13-5= 13-8= 16-9= 15-6= 9+7= 7+5= 7+4= 7+2= 11-7= 13-4= 8+4=
13-6= 15-7= 14-8= 14-9= 12-7= 11-4= 7+6= 18-9= 8-8= 3+2= 13-5= 13-8= 8-1= 6+8= 13-9= 11-6= 6+7= 4+7= 14-6= 8-6= 5+9= 13-7= 4+3= 3-8= 16-8=
12-4=
11-6= 16-8= 11-5= 7+3= 7+7= 13-7= 7+6= 11-9= 12-5= 16-7= 8+6= 9+3= 7+10= 7+8= 8+7= 7+9= 8+9= 12-6= 14-6= 15-9= 9+5= 12-3= 8+2= 12-8= 6+4=
14-9=
补充口算题
80+5= 28-8= 70+20= 7+30= 80+5= 96-90= 62-2= 30+3= 50+8= 64-4= 20+6= 2+80=
13-4= 11-2= 2+9= 5+6= 14-5= 4+8= 16-9= 4+7= 11-5= 4+5= 12-6= 4+6= 4+7=
56-6= 96-6= 59-9= 56-50= 73-3= 27-20= 84-80= 52-50= 3+50= 34-4= 80-60= 20+30=
12-9= 5+2= 11-8= 3+4= 15-8= 3+7= 15-6= 11-7= 4+6= 15-9= 4+9= 16-7= 11-9=
30+9=
10）2+8= 12-5= 17-8= 14-7= 5-9= 179= 11-3= 5+5= 2+4= 12-8= 4+8= 3+9= 14-6=
3+2= 15-7= 14-8= 3-8= 12-7= 11-4= 2+7= 18-9= 3+6= 2+6= 13-5= 13-8= 13-7= 5+7= 13-9= 11-6= 5+8= 4+3= 3+6= 14-9= 4+9= 3+9= 12-3= 3+5= 16-8=
12-4=
口算练习（
补充口算题
45+3= 6+21= 57+2= 45+40= 45+4= 6+12= 40+36= 60+12= 45+30= 60+21=
5+52= 41+10= 5+32= 45+30= 5+23= 20+51= 54+30= 26+3= 21+60=