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