15
-3
4
-1
8
-4
19
-16
6
-4
17
-11
18
-12
7
-6
18
-16
19
-9
3
-1
8
-3
16
-2
16
-10
5
-3
11
-1
9
-7
14
-11
9
-3
18
-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.