4
-1
8
-3
4
-2
18
-1
17
-12
5
-1
15
-11
19
-14
15
-4
5
-1
5
-1
19
-6
15
-2
5
-2
9
-3
16
-12
7
-3
6
-2
17
-3
15
-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.