Common Core: 3.NBT — Number & Operations in Base Ten
Grade 3 • addition • Medium
3-Digit Addition (Set C)
Additional 3-digit practice
8 problems
1.
259
+406
___
2.
275
+340
___
3.
291
+275
___
4.
307
+209
___
5.
323
+144
___
6.
339
+478
___
7.
355
+412
___
8.
371
+347
___