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