2
-1
3
-2
2
-1
3
-2
15
-14
13
-10
8
-2
2
-1
4
-1
19
-10
19
-16
6
-4
16
-14
14
-4
6
-1
18
-10
16
-1
7
-2
13
-10
18
-2
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.