17
-11
3
-2
2
-1
2
-1
12
-11
3
-1
6
-1
13
-10
4
-2
18
-12
9
-1
13
-1
5
-1
2
-1
3
-2
8
-4
19
-9
6
-3
15
-13
8
-3
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 Easy 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.