3+9= 12-9= 17-5=
4+6= 4+9= 14-6=
12-5= 5+8= 13-7=
13-8= 6+7= 12-8=
17-9= 13-6= 11-9=
5+7= 16-8= 10-2=
9+6= 14-3= 8+5=
3+8= 10-5= 9+4=
11-6= 9+7= 7+7=
14-7= 4+7= 6+3=
我用了_______________分_______________秒,對_______________道,錯_______________道。
8+6= 9-6= 11-9=
4+7= 16-8= 4+8=
9+3= 17-6= 12-6=
2+6= 4+9= 15-7=
5+4= 8+7= 11-4=
1+9= 9+8= 19-8=
3+8= 5+9= 13-6=
7-3= 6+9= 17-8=
9+7= 3+4= 14-9=
6+8= 5+2= 11-8=
我用了_______________分_______________秒,對_______________道,錯_______________道。
9+6= 8+8= 8+6-7=
7+5= 7+7= 7+5-7=
14-9= 6+6= 12-3-7=
12-8= 9+9= 14-8+6=
5+9= 17-8= 9+3+7=
7+6= 16-9= 7+6-7=
17-5= 15-7= 5+3+5=
12-3= 14-3= 16-8+9=
14-6= 12-6= 18-9+7=
15-8= 14-7= 16-7-5=
我用了_______________分_______________秒,對_______________道,錯_______________道。
11-5-3= 18-9+6= 7+5-9=
14-6-8= 11-6+8= 8+3-5=
6+8-7= 10-6+7= 4+9-6=
2+6-4= 14-7+5= 2+9-7=
15-9+4= 15-6+8= 7+6-5=
12-8+3= 13-7+4= 3+9-6=
17-9+5= 16-7+4= 10-9+6=
16-8+4= 11-6+4= 12+4-8=
8+6-5= 6+9-5= 3+9-8=
4+8-7= 5+8-7= 7+3-9=
我用了_______________分_______________秒,對_______________道,錯_______________道。