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