7
+10
1
+13
10
+5
6
+11
9
+10
3
+1
2
+4
10
+4
6
+10
5
+13
1
+7
6
+11
10
+9
10
+10
1
+16
1
+11
10
+5
6
+11
10
+3
1
+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 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.