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