6
+1
8
+11
5
+12
8
+11
2
+17
1
+4
6
+11
1
+7
1
+4
3
+2
2
+2
8
+1
1
+18
3
+1
1
+10
3
+14
1
+5
8
+1
2
+4
4
+13
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.