Guess the Missing Number Worksheet (1 to 20) - Easy, Medium & Hard Levels

Looking for a fun and educational way to help kids master number sequences? Our Guess the Missing Number Worksheet series is designed just for that! Perfect for pre-schoolers, kindergarteners, and early primary students, these worksheets focus on numbers 1 to 20 and are divided into three engaging levels: Easy, Medium, and Hard.

Each level introduces a different challenge:

  1. Easy Level: Great for beginners! Children will fill in missing numbers from simple sequences with clear patterns.
  2. Medium Level: A step up! Kids will face sequences with more missing numbers or less obvious patterns. The 20 numbers are placed in even and odds positions.
  3. Hard Level: Ready for a brain workout? This level challenges young learners to think critically and identify tricky number patterns. The 20 numbers are placed randomly.


These worksheets are excellent for:

  1. Practicing counting skills
  2. Learning number order
  3. Enhancing logical thinking
  4. Improving attention to detail


Whether you're a parent, teacher, or home schooler, these worksheets are a great addition to your learning toolkit. Simply download, print, and let the number fun begin!

Check our Interactive YouTube Video

Download the Printable PDF Worksheet Here