8
+10
5
+14
3
+12
6
+13
9
+10
3
+11
2
+6
7
+11
10
+9
5
+4
1
+15
3
+1
2
+17
5
+4
2
+10
4
+10
7
+10
4
+2
3
+6
2
+2
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.