15
-11
2
-1
9
-5
9
-2
9
-2
15
-5
6
-2
17
-15
12
-11
19
-14
2
-1
2
-1
12
-2
16
-14
7
-4
4
-1
15
-11
18
-4
5
-3
8
-1
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.