13
-2
15
-13
15
-2
3
-2
7
-2
14
-11
15
-14
5
-3
17
-11
16
-15
9
-7
13
-12
5
-1
2
-1
19
-12
15
-13
16
-15
14
-13
2
-1
5
-3
Practice subtraction within 20 with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
Frequently Asked Questions
How do I use this Subtraction 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.