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Target Number is an exerciser allowing you to play the game of "Count is good".
Cycles concerned: Cycles 3 and 4
Targeted skill: Numbers and calculations: Practice mental and reflective arithmetic.
CONTENTS :
Several parameters are available:
- Level of difficulty (mini-target or maxi-target);
- Response time (1, 2, 3, 5 minutes or unlimited time);
- Calculation mode: automatic or not.

Automatic mode
In this mode, the calculations are performed automatically by the application, once the player has chosen two numbers and an operation.

Manual mode
In this mode, once the player has chosen two numbers and an operation, a keyboard appears ... the player must then indicate the result of his calculation before being able to move on. The result is checked, and, in the event of an error, an alert is displayed.

Verification of calculations
In both modes, an alert is displayed if:
- a subtraction gives a negative number (negative numbers prohibited);
- a division gives a non-whole number (only integers are allowed).
In manual mode, an alert is displayed if the calculation result is not correct.

Game over
The game ends automatically if the target number is found.
At any time, it is possible to propose the last number found as an answer.
Sometimes it is not possible to find the exact target ... In this case, if the student finds the closest value, he wins the game (with 100% accuracy).