Start Unknown
____ +4= 9
5
6+___=13
7
6+8=
14
21+36=
57
29-12=
17
__+8=17
9
15+___=22
7
10+23=
33
36+42=
78
76-42=
34
___+21= 26
5
26+___=42
16
36+47
83
42+63
105
51-29
22
___+42= 57
15
56+___= 68
12
67+52=
119
49+67=
116
112-54=
58
___+73= 98
25
51+___=98
47
93
56+71=
127
111-89=
22