About Zetamatrix

An online competitive math platform inspired by the original zetamac with the secret ulterior motive of being a large scale data collection initiative.

By collecting high frequency, high volume data on the way people solve mental arithmetic, we aim to fully understand the way humans solve the most fundamental type of math.

Zetamatrix official launch video:

Issues

Please submit any found issues to this form:

tips & tricks

(*) multiplication
multiplying by 5 = multiplying by 10 / 2 
24 * 5 = (24 * 10) / 2 = 240 / 2 = 120

distribute! turn it into an easier question... 
65 * 14 = 130 * 7
(/) division
division by 11: the first and final digit dictate the first and final digit of the quotient (most of the time) 
572 / 11 = 52
(+) addition
Nothing to say here... just add them together.
(-) subtraction
breaking apart numbers 
91 - 46 = (91 - 40) - 6

tiers

  • rookie ⛄︎
  • novice ♙
  • competent ♘
  • skilled ♗
  • proficient ♖
  • expert ♕
  • senior ♔
  • master ⚚
  • grandmaster ☬
  • champion ⚘
  • god 🀙