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