Addition without regrouping
35+11
46
27-14
13
17+48
65
27-15
12
21+17
38
154-33
121
167+33
200
159-39
120
156+43
199
789-111
678
893+365
1,258
1,672-351
1,321
1,573+2,325
3,898
1,798-1,456
342
369+568
937
783-211
572
5,123+4,123
9,246
38,965-15,732
23,233
14578+948
15,526
2,654-1,542
1112