2
+2
6
+12
2
+4
7
+1
7
+2
2
+12
10
+10
10
+3
2
+17
4
+11
5
+4
1
+5
1
+6
2
+3
4
+4
2
+13
2
+7
1
+13
10
+8
2
+2
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.