8
+1
1
+14
3
+2
5
+3
4
+13
10
+8
6
+10
3
+16
2
+10
5
+11
3
+3
6
+2
1
+15
5
+13
10
+5
2
+15
1
+12
7
+10
3
+4
5
+4
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.