Maths Challenge: mental maths

GAME INFO
Maths Challenge is an online maths game or mental maths challenge, a maths quiz for children, with calculations and mathematical operations of addition, subtraction, multiplication and division. The game requires the player to answer each maths question correctly within a limited time. Is the maths expression true or false? Determine if the result of the maths problem is correct, the calculation has been done well. If you are correct, then enter the next level smoothly, otherwise, the game will fail. What level are you able to reach in this mathematical challenge game with operations such as addition, subtraction, multiplication and division?