2
-1
17
-5
16
-6
18
-16
12
-1
8
-6
7
-4
18
-8
18
-13
8
-5
7
-6
18
-2
19
-2
5
-4
7
-6
2
-1
6
-1
15
-12
2
-1
9
-5
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.