7
-6
4
-1
19
-10
7
-5
2
-1
19
-10
6
-5
6
-1
7
-4
11
-1
5
-2
7
-2
17
-12
16
-14
16
-10
2
-1
3
-1
18
-6
18
-5
5
-4
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 Expert 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.