3
+10
7
+12
2
+2
2
+16
8
+11
7
+11
5
+14
10
+9
2
+6
5
+1
5
+14
4
+5
4
+15
7
+11
2
+11
8
+10
7
+12
10
+9
10
+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.