Choose the right number to successfully solve the operation.
Solve as many operations as possible without making mistakes for as long as you can. A really complicated task for slow minds. Get ready to succeed in as many operations as possible!

Choose the right number to successfully solve the operation.
Solve as many op... read moreerations as possible without making mistakes for as long as you can. A really complicated task for slow minds. Get ready to succeed in as many operations as possible!