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