4
-2
16
-3
17
-10
15
-2
11
-1
8
-5
17
-11
12
-11
7
-2
5
-4
15
-14
8
-2
6
-3
4
-2
4
-1
16
-14
2
-1
6
-1
6
-2
18
-15
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.