53 + 70
123
75 - 30
45
17 + 6 + 7 =
30
59 + 11=
70
60 + 17
77
26 + 40 =
66
45 - 5 - 10 =
30
100 - 40
60
12 + 70
82
35 + 80
115
30 - 5 -10 =
15
66 + 50
115
13 + 80
93
5 + 7 + 8 =
20
41 - 11 =
30
90 - 80
10
100 - 80 - 10 =
10
110 - 60
50