- Count by 3s: 0, 3, 6, 9, __
- What comes after 2?
- Count the stars: How many are there? (19 stars)
- What is the next number in the sequence? 10, 15, 20, __, 30
- What comes after 16?
- Count by 5s: 0, 5, 10, 15, __
- Count the circles: How many are there? (14 circles)
- What is the next number in the sequence? 5, 10, __, 20, 25
- What comes after 7?
- What is the next number in the sequence? 9, 12, __, 18, 21
- What is the next number in the sequence? 3, 6, 9, __, 15
- What is the next number in the sequence? 6, __, 12, 15, 18
- What is the next number in the sequence? 10, __, 30, 40, 50
- What is the next number in the sequence? 10, 20, 30, __, 50
- Count by 3s: 6, 9, 12, 15, __
- What comes after 4?
Practice counting 1 to 20 with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
Frequently Asked Questions
How do I use this Counting 1 To 20 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.