12
-1
17
-2
15
-1
17
-4
8
-6
18
-1
2
-1
3
-2
7
-4
9
-3
4
-3
19
-2
5
-2
18
-10
16
-6
17
-4
18
-2
4
-1
7
-1
13
-12
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.