Common Core: 1.OA
Answer Key
Grade 1additionEasy

Sums to 10 (Set C)

Additional practice with sums to 10

12 problems

1.
1
+ 9
__
2.
2
+ 8
__
3.
2
+6
_
4.
3
+4
_
5.
3
+2
_
6.
3
+0
_
7.
4
+2
_
8.
5
+4
_
9.
6
+2
_
10.
6
+1
_
11.
1
+2
_
12.
0
+3
_