①12+3-7=
②15-6-3=
③11-6-3=
④8+2+5=
⑤14-2-7=
⑥13-8+4=
8+9=
12-5=
6+7-8=
9+6=
15-7=
13+2-6=
7+4=
18-9=
11-4+3=
11-2=
16-8=
12-4+6=
16-9= 11-9= 14-9+3=
18-9= 12-9= 15-9+3=
19-9= 10-9= 17-9+2=
①12﹣7﹣2=
②16﹣9+4=
③13﹣5﹣6=
④6+3+7=
⑤13﹣4+8=
⑥7+8﹣9=
13﹣4﹣1= 5+6﹣8= 6+6﹣9=
14﹣7+8= 17﹣3﹣9= 15﹣8+4=
(片)
(本)
(个)