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