Addition
122+342=
464
450-110=
340
123-90=
33
671-345
326
6789+5421
12,210
200+111=
311
221-121
100
457+121=
578
345+185=
530
6790-1078=
5,712
450+671=
1121
890-59=
831
342+111=
453
732-171=
561
9853+7936=
17,789
54+73=
127
7123-671=
6452
891-341=
550
187+370=
557
7444-3298=
4,146
821+157=
978
1000-671=
329
9081-432=
8,649
999-231=
768
9000+5117=
14,117