Finger Math: Basic Concepts

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Finger Math (also known as Chisanbop) is a Korean finger-counting technique that allows you to represent numbers from 0 to 99 using both hands. It’s a powerful tool to develop mental arithmetic skills, especially for young learners.

Basic Rules

Right hand represents units (0–9), while the left hand represents tens (10, 20, ..., 90).

  • Index finger = 1
  • Index + middle = 2
  • Index + middle + ring = 3
  • All four fingers (excluding thumb) = 4
  • Thumb = 5
  • Thumb + index = 6 (5 + 1), etc.

The left hand follows the same pattern, but multiplied by 10:

  • Index finger (left) = 10
  • Thumb (left) = 50
  • Thumb + index (left) = 60, and so on.

Number Examples

Learning Resources

Basic Concepts
Exercise 1
Exercise 2
Exercise 3
Exercise 4
Exercise 5
Exercise 6
Exercise 7

Tips & Benefits

✅ Improves number sense and mental calculation speed.

✅ Engages motor memory — great for kinesthetic learners.

✅ No tools required — just your hands!

Video Demo

Coming soon: step-by-step video tutorial.