9
-7
4
-1
18
-8
15
-5
3
-2
18
-2
19
-11
5
-2
12
-10
9
-2
2
-1
17
-6
6
-3
11
-10
4
-1
19
-1
15
-14
5
-3
18
-15
2
-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.