11-6= 13-6= 15-7=
11-7= 13-7= 15-8=
11-8= 13-8= 15-9=
11-9= 13-9= 16-7=
12-4= 14-5= 16-8=
12-5= 14-6= 16-9=
12-6= 14-7= 17-8=
12-7= 14-8= 17-9=
12-8= 14-9= 18-9=
我用了_______________分_______________秒,對_______________道,錯_______________道。
7+6= 3+8= 7+7=
8-5= 4+9= 8+8=
14-6= 14-9= 9+9=
18-9= 13-5= 4+6=
9+5= 4+8= 5+9=
8+3= 14-7= 6+7=
12-7= 15-8= 14-5=
16-8= 15-9= 12-9=
2+9= 6+9= 17-8=
12-5= 6+5= 13-7=
我用了_______________分_______________秒,對_______________道,錯_______________道。
18+0= 3+7= 6+4=
5+8= 4+9= 7+6=
16-8= 14-5= 9+5=
2+9= 13-9= 8+3=
15-6= 12-6= 4+3=
3+9= 11-8= 11-9=
14-7= 6+7= 13-8=
9+4= 4+8= 17-8=
13-7= 5+9= 18-9=
15-8= 6+9= 11-1=
我用了_______________分_______________秒,對_______________道,錯_______________道。
10-6= 5+3= 13-8=
10-8= 9+7= 15-6=
14-6= 8+2= 12-4=
13-9= 7+2= 13-7=
8+9= 9+5= 8+5=
7+8= 12-6= 4+9=
4+8= 12-3= 18-9=
5+6= 15-8= 14-5=
3+8= 16-8= 15-7=
9+4= 11-9= 12-9=
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。