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