QUICK MENTAL MATHS Speed Game

GAME INFO
Quick maths is an online mental arithmetic game to play for free. Perform operations in your head, without paper or calculator, with very fast math. The time is counted, it is finite (3 seconds!!!), and you must point out the correct result of the operation without making a mistake. Choose the correct result of the additions and subtractions or complete the equations. Negative numbers may appear in these quick calculations.