4
-2
16
-10
15
-10
3
-1
14
-11
3
-1
4
-3
15
-14
15
-13
4
-1
14
-12
13
-10
8
-3
4
-1
19
-18
17
-16
16
-6
6
-3
6
-1
5
-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.