13
-2
12
-10
8
-6
6
-4
5
-4
16
-6
2
-1
7
-1
16
-3
18
-17
3
-2
7
-3
5
-2
8
-5
7
-3
12
-2
2
-1
13
-12
6
-3
6
-4
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.