Column Addition (Multiple 3-Digit)

Find the sum of the numbers below. Use regrouping where necessary.

1) Solve
230
295
+129
2) Solve
973
722
+719
3) Solve
972
679
+763
4) Solve
272
117
+949
5) Solve
979
303
+455
6) Solve
488
411
+586
7) Solve
455
479
+364
8) Solve
709
544
+376
9) Solve
105
142
+691
10) Solve
443
179
+303
11) Solve
947
869
+660
12) Solve
997
797
+764
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