10
+3
5
+10
8
+10
5
+14
10
+4
5
+12
7
+11
4
+14
10
+6
3
+13
2
+5
1
+18
2
+2
8
+11
3
+14
3
+1
1
+15
2
+5
2
+5
8
+11
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.