17
-16
15
-13
8
-6
5
-4
11
-1
18
-14
8
-7
17
-2
19
-6
3
-1
8
-7
7
-3
5
-4
19
-12
20
-10
2
-1
17
-13
16
-1
16
-13
4
-2
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.