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