10
+2
8
+11
7
+11
5
+1
6
+1
3
+3
2
+16
3
+2
4
+10
3
+4
4
+4
2
+15
1
+16
4
+10
3
+11
1
+18
1
+3
5
+2
10
+7
2
+3
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 Easy 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.