6
+10
2
+15
3
+12
5
+13
4
+14
4
+5
10
+3
10
+7
5
+4
8
+11
8
+1
2
+16
1
+17
4
+12
5
+13
5
+3
3
+11
2
+17
3
+14
2
+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 Expert 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.