19
-18
19
-2
20
-10
8
-6
19
-3
17
-5
18
-15
13
-3
3
-2
4
-1
9
-7
4
-3
14
-10
4
-3
11
-1
7
-2
6
-3
7
-2
4
-3
14
-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.