9
-1
12
-1
4
-1
16
-13
8
-6
12
-1
5
-1
3
-2
5
-2
5
-3
7
-5
5
-1
4
-2
4
-1
11
-10
3
-2
19
-17
16
-6
9
-5
17
-6
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.