Nice mental arithmetic solving game. Try to solve the question mark. Use the above formulas to get the right answer. If you get it, play a more difficult level. BrainwarNL has better functionalities and more icons available than Brainwar.nl.
Nice mental arithmetic solving game. Try to solve the question mark. Use the above formulas to get the right answer. If you get it, play a more difficult level. BrainwarNL has better functionalities and more icons available than Brainwar.nl.