5
-4
4
-1
3
-1
9
-4
15
-3
15
-10
14
-4
5
-1
8
-1
9
-8
5
-2
17
-10
19
-17
13
-3
5
-1
16
-14
9
-8
15
-11
19
-4
3
-1
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.