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Transformer des expressions-calcul littéral

Authored by LAURE M

Mathematics

KG - 3rd Grade

CCSS covered

Used 2+ times

Transformer des expressions-calcul littéral
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplifier:
 C=2×3+4×xC=2\times3+4\times x  

 C=14xC=14x  

 C=6+4xC=6+4x  

 C=10xC=10x  

 C=5+4xC=5+4x  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Quelle est la longueur du segment [AB]?


3x3x

x+3x+3

x3x-3

7

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Quelle est l'aire de la figure ci-dessus?

A=10xA=10x

A=(3x)2=9x2A=\left(3x\right)^2=9x^2

A=x2+2x2=3x2A=x^2+2x^2=3x^2

A=x2+(2x)2=5x2A=x^2+\left(2x\right)^2=5x^2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Réduire l'expression suivante:
 A=14x2+(x2)12x2+2A=\frac{1}{4}x^2+\left(x-2\right)-\frac{1}{2}x^2+2  

 A=14x2+xA=-\frac{1}{4}x^2+x  

 A=14x2+x+4A=-\frac{1}{4}x^2+x+4  

 A=06x2+xA=\frac{0}{6}x^2+x  

 A=14x2+x4A=\frac{1}{4}x^2+x-4  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Développer:
 B=5x(2x7)B=5x\left(2x-7\right)  

 B=10x7B=10x-7  

 B=10x27B=10x^2-7  

 B=10x235xB=10x^2-35x  

 B=3x2B=3x^2  

Tags

CCSS.HSA.APR.A.1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Que vaut l'expression suivante si a=-2?
 A=(4a2+2a)×12A=\left(4a^2+2a\right)\times\frac{1}{2}  

A=6

A=-10

A=3

A=5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Réduire l'expression suivante:  A=2yy2+6y29+yA=2y-y^2+6y^2-9+y  

 A=8y39A=8y^3-9  

 A=5y2+3y9A=5y^2+3y-9  

 A=y+7y29A=y+7y^2-9  

 A=y2A=-y^2  

Tags

CCSS.7.EE.A.1

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