OEF calculations
--- Introduction ---
This module actually contains 4 exercises on calculation (addition of fractions, product of signed numbers, rules of priority).
Addition of fractions
Calculate the following :
.
For that, reduce to the same denominator :
Then, do multiplications :
Last, add (or substract) numerators
And, if possible, simplify :
Priority rules
You have to calculate
.
Which operation are you going to do first ?
Do it ! (you must simplify fractions) :
Multiplication of signed integers
Calculate :
=
Transformation by multiplication
How transforms the product of two numbers if one one number by
and the other one by
? It is par .
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- Description: collection of exercices on calculation (fractions, signed numbers). serveur web interactif avec des cours en ligne, des exercices interactifs en sciences et langues pour l'enseigment primaire, secondaire et universitaire, des calculatrices et traceurs en ligne
- Keywords: math, interactif, exercice,qcm,cours,classe,biologie,chimie,langue,interactive mathematics, interactive math, server side interactivity,exercise,qcm,class, algebra, fraction, addition, multiplication, signed integer, priority