18
-6
7
-4
3
-1
6
-3
14
-1
18
-10
15
-10
16
-11
16
-12
4
-1
12
-11
8
-5
13
-12
7
-1
3
-1
8
-4
7
-6
17
-12
9
-5
19
-6
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.