_____ | _____ | _____ |
_____
_____个十和_____个一合起来是_____。
12-58 6+9
15 11-4
12-5
17-79 14-8
14-9 5+8
7+6
11-3= | 9+7= | 14-6= | 5+8= |
13-7= | 12-4= | 16-8= | 7+6= |
15-9= | 8+4= | 17-8= | 9+9= |
13-=6
+7=14
-6=5
-4=6 7+
=15
=
(片)
=
(个)