10
+5
3
+14
1
+8
4
+5
2
+13
10
+6
9
+10
4
+15
10
+7
5
+14
8
+11
2
+3
6
+1
4
+4
10
+10
7
+12
4
+14
4
+5
5
+14
5
+12
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.