6
-4
18
-13
17
-7
18
-12
11
-1
5
-3
18
-5
9
-4
7
-2
20
-10
19
-13
15
-14
2
-1
3
-1
8
-5
9
-4
17
-12
3
-2
9
-5
13
-2
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.