addition
26+55=?
what is 81
45-13=?
what is 32
12
what is 10
56+13=?
what is 69
66-37=?
what is 29
17
what is 20
77+47=?
what is 124
78-29=?
what is 49
33
what is 30
61+58=?
what is 119
56-48=?
what is 8
67
what is 70
84+37=?
what is 121
93-74=?
what is 19
75
what is 80