2
+1
2
+15
5
+1
8
+11
3
+3
1
+17
6
+12
1
+6
10
+6
1
+15
2
+2
10
+2
2
+15
6
+12
10
+9
2
+14
1
+14
7
+12
2
+14
10
+9
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 Easy 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.