15
-13
19
-3
3
-2
16
-11
13
-12
3
-1
3
-2
9
-5
8
-7
13
-3
8
-5
18
-14
13
-2
5
-2
15
-10
12
-10
19
-3
2
-1
5
-4
19
-16
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.