2 digit addition
32+11
43
59-11
48
359+110
469
747-231
516
65+47
112
57+12
69
88-10
78
540+133
673
999-888
111
765+125
890
12+11
23
43-22
21
653+242
895
657-243
414
584-256
328
55+33
88
39-25
14
758+231
989
547-326
221
542+345
887
67+32
99
77-55
22
333+111
444
789-653
136
678+789
1467