les nombres relatifs Flashcards

1
Q

de quoi est composé un nombre relatif

A

signe positif ou négatif et distance à zéro

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2
Q

quel est l’adjectif qui califie ses 2 nombres +5 et -5

A

opposés

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3
Q

comment fait on la somme de deux nombres de mêmes signes

A

additionne les distances a zéro et garde le même signe

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4
Q

pour soustraire un nombre, on

A

ajoute son opposé

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5
Q

a= (+7)+(-4)=

A

3/+3

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6
Q

b=(+8)-(-9)=

A

17

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7
Q

pour un nombre positif on peux

A

omettre le signe +

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8
Q

l’opposé de 5.1 est

A

-5.1

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9
Q

la somme de deux nombres opposés est

A

zéro

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10
Q

enlever une perte c’est

A

ajouter un gain

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11
Q

-6+ -5

A

-11

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12
Q

13-17

A

-4

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13
Q

8- -9

A

17

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14
Q

-7-4- -6

A

-5

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15
Q

2–5-3

A

4

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