Here you have the Robin Hood game. It is simple but it will help for mental operations. It goes like this:

- One child "shoots" with his hands an imaginary arrow and says an operation, e.g: 3 x 4. Then he/she says the name of the student he/she is aiming and this child has to give the right answer to the operation.

- If he/she gets it right then he/she shoots to another child a new operation. If he/she misses it then is out of the round (he/she could keep on reviewing multiplication or any alternative).

Enjoy it !!