1
+17
3
+4
2
+14
4
+2
1
+10
4
+12
1
+11
1
+18
1
+12
8
+1
1
+4
6
+11
5
+11
5
+10
1
+11
6
+3
5
+3
8
+11
3
+3
8
+10
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.