9
-3
14
-2
15
-5
9
-7
7
-4
18
-7
16
-12
2
-1
7
-1
15
-12
6
-4
16
-3
3
-1
9
-1
7
-1
6
-5
19
-3
12
-2
8
-3
5
-2
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.