Défi Relatifs

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About this app

Related Challenge is published by the Academy of Dijon.

Type: exerciser

Cycle concerned: Cycle 4

Base Area: 4

Target competency: Calculate - Practice mental calculations and automated calculation

Description: Related Challenge is an exerciser on transactions with related numbers.

It is possible to set it:

- the response time

- the number of questions

- the type of operations (addition, subtraction, multiplication, division)

- the type of operation (direct calculation or calculation hole).

- the signs of the relative numbers (identical contrary, indifferent).

- writing numbers and responses (simplified or not).

Three configurations (easy mode, medium and hard) are used to start the game very quickly.

Related Challenge has two game modes:


The student realizes exercise alone. After validation of the response, a correction is given if needed. At the end of the exercise, a small balance sheet is displayed: a score of success, and some information about response times (best time, less good time and average time).


The exercise is carried out in two, in shared mode, as a challenge to win against his opponent must respond more quickly (and cheapest!) Than him. At the end of the year, a review of the responses, corrected if necessary, is displayed.

Monitoring of learning:

It is possible (but not required) to create a user account in Related Challenge. In this case, the information of each exercise performed with this account are available. It is possible to see a balance sheet or the details of each exercise.


Related challenge can be used during an ongoing session, as a training tool for the differentiation of the work done.

Related challenge can also be used in Custom accompaniment of ways:

- As a training tool of reinforcement / capacity acquired, allowing differentiation of the work done (Operations used, time limit, direct calculations or hole, etc.);

- As a tool of "competition" to compete with another student, through the Challenge Mode: championship knockout round, quarter-finals, etc., with the entire group, or chicken by levels, with for example a ranking display this week in the room.
Updated on
May 27, 2019

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What's new

Correction d'un bug qui empêchait scanScores de reconnaître correctement le QR-Code.