13
-12
5
-4
8
-6
17
-14
15
-5
7
-4
14
-2
3
-1
5
-1
8
-4
9
-1
16
-10
6
-1
5
-3
4
-2
14
-11
9
-5
14
-11
13
-12
13
-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 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.