1
+2
3
+3
3
+10
3
+2
3
+6
10
+3
3
+12
2
+4
4
+10
4
+1
3
+3
2
+6
1
+1
3
+15
7
+10
4
+14
4
+15
4
+15
8
+10
6
+1
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.