addition
684+342
1026
223456-111111
112345
44/2
22
123x2
246
12-8
4
134+565
999
645782-497142
148640
46/2
23
2345x2
4,690
36/12
3
657+934
1591
22-19
e
orphan/e
poor
907x12
abc
12+12+12
36
687+123
810
1-1
11
246/2
123
qrs x tuv
wxy
36-12
24
486+342
828
op-minecraft
oof
22/22=q
q=1
12x3
36
2x2
4