7-4=
3
5+7=
12
16
5-3=
2
6+9=
15
9-6=
7+8=
#,20,25,30
15-6=
9
8+3=
11
7
9+8=
17
13,16,#,22
19
12-4=
8
9+5=
14
10-7=
7+7=
22,#,26,28
24
14-5=
11+7=
18
11-5=
6
8+6=
15,18,21,#
10-4=
5+8=
13
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