Ejercicios fracciones, potencias y decimales

Ejercicios fracciones, potencias y decimales

8th Grade

7 Qs

quiz-placeholder

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Ejercicios fracciones, potencias y decimales

Ejercicios fracciones, potencias y decimales

Assessment

Quiz

Mathematics

8th Grade

Hard

Created by

Colegio HCREY

Used 64+ times

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 5+4[3+9:(3)]5(4)9+6=5+4·[-3+9:(-3)]-5·(-4)-9+6=  

-67

-2

4

7

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 1/92/3(1/25)(5/4:5/2)29/5:18/10=1/9-2/3·(1/2-5)·(5/4:5/2)^2-9/5:18/10=  

 1115\frac{-11}{15}  

 1536\frac{15}{36}  

 536\frac{-5}{36}  

 1437\frac{14}{37}  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 (3/5+9/4×16/27)/(3/7:3/143)=(3/5+9/4\times16/27)/(3/7:3/14-3)=  

3

 2930\frac{29}{30}  

 2915\frac{29}{15}  

 2915\frac{-29}{15}  

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 (13/2)34/5:(5)1+(1/4)((2)/(5))=(1-3/2)^3·4/5:(-5)^{-1}+(-1/4)·((-2)/(-5))=  

 25\frac{2}{5}  

 38\frac{3}{8}  

 25\frac{-2}{5}  

 127\frac{-12}{7}  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Expresa en forma de fracción y calcula:

 1935\frac{19}{35}  

 6391\frac{63}{91}  

 74\frac{7}{4}  

 218\frac{-21}{8}  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Expresa en forma de fracción y calcula:

5999\frac{-59}{99}

799\frac{-7}{99}

1145\frac{11}{45}

2

7.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Media Image

Aplica propiedades de potencias para simplificar la siguiente expresión (No dejes exponentes negativos en el resultado)

15452991\frac{1545}{2991}

12573\frac{125}{73}

825\frac{8}{25}

2352\frac{2^3}{5^2}