17
-12
6
-5
5
-2
3
-1
18
-10
16
-4
18
-14
18
-12
3
-1
14
-1
12
-10
13
-2
7
-3
3
-2
17
-4
6
-4
8
-7
6
-1
3
-1
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 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.