6
+10
1
+7
2
+2
10
+3
3
+3
4
+4
10
+8
6
+10
8
+10
1
+8
5
+3
9
+10
9
+10
7
+2
5
+3
1
+1
10
+6
10
+2
10
+2
4
+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 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.