2
+16
3
+13
1
+16
6
+3
4
+1
8
+11
4
+12
4
+3
3
+16
4
+14
1
+8
5
+1
10
+2
6
+12
8
+1
10
+2
1
+18
5
+13
2
+6
10
+7
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.