Fraccions i potències

Fraccions i potències

9th Grade

21 Qs

quiz-placeholder

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Fraccions i potències

Fraccions i potències

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

Created by

Javier Rodríguez

Used 99+ times

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21 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 23+43=\frac{2}{3}+\frac{-4}{3}=  

 23-\frac{2}{3}  

 23\frac{2}{3}  

 63\frac{6}{3}  

 63-\frac{6}{3}  

-2

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 13 + 13+5343=\frac{1}{3\ }+\ \frac{1}{3}+\frac{5}{3}-\frac{4}{3}=  

És molt complicada, no l'acabaré.

 23\frac{2}{3}   

1

 33-\frac{3}{3}  

Cap de les altres

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 34 (2)5=\frac{3}{4}·\ \frac{\left(-2\right)}{5}=  

 158\frac{15}{-8}  

 620\frac{6}{20}  

 310-\frac{3}{10}  

Cap de les altres

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 a2a3=axa^2·a^3=a^x  

x=5

x=6

x=patata

x=2/3

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 a3a5= aaa aaaaa=1aa=a2\frac{a^3}{a^5}=\ \frac{a·a·a\ }{a·a·a·a·a}=\frac{1}{a·a}=a^2  

És correcte

No és correcte

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 a+2a 3=a+\frac{2a\ }{3}=  

a

 3aa\frac{3a}{a}  

  5a3\frac{\ 5a}{3}  

Cap de les altres es correcte.

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 34+25=320+220=520=14\frac{3}{4}+\frac{2}{5}=\frac{3}{20}+\frac{2}{20}=\frac{5}{20}=\frac{1}{4}  

Sap sumar i simplificar

No sap sumar, però si simplificar

No sap sumar ni simplificar

Sap sumar, però mostra dificultats en la simplificació.

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