10
+10
7
+12
3
+1
2
+5
6
+2
3
+10
7
+1
3
+6
10
+8
6
+3
10
+10
5
+2
8
+1
5
+13
1
+10
10
+2
6
+11
1
+18
7
+12
10
+5
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.