16
-13
9
-4
14
-4
4
-2
12
-2
18
-14
15
-3
11
-1
4
-2
16
-4
5
-2
7
-5
18
-16
9
-3
16
-13
9
-2
2
-1
5
-4
5
-2
6
-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 Medium 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.