7
-1
15
-12
19
-13
12
-1
19
-15
13
-1
16
-15
6
-1
4
-2
3
-1
17
-6
4
-2
6
-1
18
-16
7
-6
20
-10
7
-4
14
-11
4
-1
4
-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.