18
-10
7
-4
7
-6
8
-5
2
-1
3
-2
8
-3
8
-2
3
-1
5
-4
13
-1
3
-1
7
-5
15
-10
17
-16
8
-4
19
-16
4
-2
7
-1
16
-14
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.