7
-4
5
-1
4
-2
9
-3
15
-2
4
-2
6
-4
8
-2
17
-10
8
-2
2
-1
13
-10
16
-3
11
-1
19
-1
4
-3
17
-7
17
-13
19
-15
15
-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.