Math Sprint
Math Sprint is a short round of mental arithmetic. You get sixty seconds, one question at a time, and a box for the answer. Addition, subtraction and multiplication are mixed together.
The catch is the penalty for a wrong answer. It takes three seconds off the remaining time, so typing something quickly is not always better than taking a moment to work it out.
How Math Sprint works
A correct answer adds one point and brings up the next question. A wrong answer keeps the score as it is, removes three seconds and shows the answer you missed.
Subtraction questions do not have negative answers. Multiplication uses numbers from two to twelve. Addition and subtraction use numbers from two to forty-nine.
The round ends when the timer runs out. Your result is the number of correct answers, not the total number of questions attempted. Submitting an empty box does not skip a question or earn a point.
Controls
Press Start to show the first question. Type your answer and press Enter, or click or tap Submit.
The answer box is cleared and selected again after each submission, so you can continue typing on a keyboard. On a phone, use the number keyboard and the Submit button if needed.
Press Play again at the end for a new round of questions.
Tips
Check the operation sign before calculating. It is easy to carry on adding when the next question asks for multiplication.
Break awkward additions into smaller steps. For 38 plus 27, adding 20 first and then 7 may be easier than trying to see the whole answer at once.
For multiplication, use a nearby fact you know. Twelve times seven is ten times seven plus two times seven.
Avoid blind guesses. A wrong answer costs three seconds as well as the time spent entering it. If the answer looks wrong, correct it before submitting.
Notes from playing it
The questions change randomly, so the mix of operations will not be identical from round to round. A run with familiar multiplication facts may feel easier than one with several larger subtractions.
On a phone, the number keyboard takes up part of the screen. Check that you can see the question and answer box comfortably before committing to a full round.
There is no calculator or hint button inside the game. Use it as a quick arithmetic practice round, with accuracy first and speed coming from familiarity.