6
-2
18
-8
15
-4
14
-1
6
-2
2
-1
3
-2
7
-6
7
-3
18
-17
13
-11
5
-2
6
-2
8
-2
6
-3
6
-2
11
-1
12
-2
18
-6
2
-1
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 Expert 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.