3
-2
19
-10
5
-4
7
-4
3
-2
17
-5
2
-1
9
-1
9
-4
4
-2
2
-1
9
-1
5
-1
6
-4
8
-2
9
-1
2
-1
3
-2
9
-6
8
-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 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.