13
-3
8
-4
8
-4
12
-10
11
-1
9
-6
18
-4
19
-7
7
-3
16
-1
15
-12
4
-2
7
-3
15
-5
4
-3
15
-14
16
-10
13
-1
7
-6
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.