Common Core: 1.OA — Operations & Algebraic Thinking
Grade 1 • addition • Challenging
Mixed Addition Practice (Set D)
Keep reviewing all facts
12 problems
1.
3
+2
_
2.
0
+18
__
3.
4
+16
__
4.
5
+12
__
5.
6
+ 9
__
6.
7
+ 5
__
7.
8
+ 2
__
8.
15
+ 1
__
9.
2
+17
__
10.
6
+1
_
11.
11
+ 9
__
12.
12
+ 6
__