12
-11
13
-3
12
-10
18
-10
4
-1
17
-12
7
-6
17
-13
7
-3
3
-1
14
-10
13
-11
15
-2
13
-3
8
-5
14
-4
2
-1
7
-2
7
-1
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 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.