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