Number Sense

Number Sense is the second of the 18 minigames and the second math minigame.

Gameplay
Number Sense plays like a flappy bird clone, with the key difference that the speed seems to exhibit exponential growth. You flap around, with mountains instead of pipes, also answering math questions along the way.

Educational Value
This minigame is supposed to teach kids number lines, absolute value, roman numerals, and greatest common factor.

Glitches
Number Sense became the first glitched minigame and is the most glitched minigame with a total of three glitches. These glitches are Too Many Mountains, Zombie Bird, and the Infinite Score Glitch.

Trivia

 * The highest score known to be achieved but not saved as a high score was about 140000.
 * As the score gets higher, the ground will eventually be out of view, but only after tens of thousands of points.
 * Originally a racing minigame with questions.
 * This minigame is one of two included in the free version.