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