Common Core: 3.NBT
Answer Key
Grade 3additionMedium

3-Digit Addition (Set B)

More 3-digit addition practice

8 problems

1.
243
+472
___
2.
259
+406
___
3.
275
+340
___
4.
291
+275
___
5.
307
+209
___
6.
323
+144
___
7.
339
+478
___
8.
355
+412
___