19
-17
3
-2
19
-17
3
-2
19
-10
4
-3
7
-5
17
-13
4
-3
2
-1
14
-1
5
-3
19
-11
13
-3
8
-1
17
-1
16
-6
9
-2
6
-1
19
-16
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.