Magnitude Quiz
Four options. One right order of magnitude.
Ten questions, four options each. The options only differ by a factor of ten, so the digits cannot help you: you have to know the scale. The right one is worth 100 points, its neighbour 40.
2.3 million · 23 million · 230 million · 2.3 billion
A multiple choice quiz where the digits do not help
Each question comes with four options that share the same digits and differ only by a factor of ten: 2.3 million, 23 million, 230 million or 2.3 billion. There is nothing to recognize, so the only way to answer is to reason about the scale.
The right option is worth 100 points. The option next to it, one order of magnitude away, is worth 40. Anything further scores nothing. Ten questions, 1,000 points to win.
The fastest way into the game
There is no keyboard and no time limit: tap an option, or press 1 to 4 on a computer. It is the easiest mode to start with, and a good warm up before the daily question, where you have to produce the number yourself.
FAQ
Why do all four options have the same digits?
So that you cannot guess from a number that looks familiar. Only the order of magnitude separates the options, which is exactly the skill the game trains.
How is the quiz scored?
The exact option scores 100 points, an option one order of magnitude away scores 40, and the others score 0. A game has 10 questions, for a maximum of 1,000 points.