5+4
7-3
12-6
20+10
30
30-10
20
6+8
14
15-8
7
23-3
30+20
50
80-20
60
14+15
29
30-7
23
26+___=30
4
43+30
73
43-30
13
36+56
92
37-14
62+37
99
54+40
94
112-40
72
68+44
112
56-37
19
34-17
17
99+50
149
113-50
63
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