17
-12
7
-3
19
-16
7
-4
4
-2
3
-1
12
-1
20
-10
6
-1
9
-5
5
-3
5
-1
16
-6
8
-7
9
-3
13
-1
3
-2
3
-1
3
-2
7
-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 Easy 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.