4
-3
8
-7
2
-1
3
-2
8
-2
15
-13
18
-2
2
-1
9
-8
9
-4
13
-10
9
-2
19
-8
16
-14
5
-3
17
-3
12
-1
2
-1
17
-14
4
-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.