853 + 399 =
1252
34 + 18 =
52
52 + 17 =
69
48 + 57 =
105
98 + 227
325
792 + 509 =
1301
999 + 51 =
1050
19 + 12 =
31
9 + 12 =
21
152 + 99 =
251
8 + 27 =
35
146 + 144 =
290
8 + 9 + 2 + 1 =
20
72 + 99 =
171
302 + 99 =
401
199 + 34
133
98 + 35 =
133
21 + 19 + 7 + 3 =
50
23 + 49 =
72
645+299 =
944
419+102 =
521