7
+12
2
+14
1
+12
1
+10
1
+7
9
+10
8
+11
3
+16
5
+1
2
+17
3
+3
3
+6
1
+11
1
+15
4
+15
2
+1
5
+10
10
+4
6
+1
3
+4
Practice addition within 20 with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
Frequently Asked Questions
How do I use this Addition Within 20 Expert Worksheets worksheet?
Print the worksheet and complete the problems. Each set number generates a unique arrangement. Use the same set number for all students in a class for consistent assessment.
Is there an answer key?
Yes — every worksheet includes a complete answer key. Print it separately or view it on screen.