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