23+54
45-24
12+28
84-36
84-54
45+27
51-12
25+34
94-38
10+51
40-35
14+36
24+36
14+65
22+25
41-22
12+85
79
5
40
56
97
61
21
72
39
50
47
30
77
59
60
19
48
