6
-1
5
-2
4
-3
17
-7
8
-4
18
-15
15
-13
8
-2
8
-7
6
-2
14
-4
19
-15
19
-3
12
-2
3
-2
6
-2
7
-2
19
-7
4
-2
18
-4
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.