Common Core: 1.OA
Answer Key
Grade 1additionBeginner

Introduction to Addition 1

Learn the basics of adding numbers from 0 to 5

10 problems

1.
0
+2
_
2.
0
+1
_
3.
1
+0
_
4.
1
+5
_
5.
1
+4
_
6.
1
+3
_
7.
2
+2
_
8.
2
+1
_
9.
2
+0
_
10.
2
+5
_