5
-3
7
-2
16
-14
19
-3
14
-3
18
-3
7
-6
4
-2
17
-14
4
-3
19
-17
9
-4
16
-4
2
-1
2
-1
19
-14
5
-1
6
-2
5
-1
14
-10
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 Hard 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.