12
-2
19
-15
15
-13
8
-5
17
-3
9
-7
4
-3
19
-18
4
-1
5
-4
16
-5
16
-15
14
-4
8
-3
19
-18
17
-2
5
-4
9
-8
7
-2
6
-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.