DiagnosticoNReais

DiagnosticoNReais

8th Grade

8 Qs

quiz-placeholder

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DiagnosticoNReais

DiagnosticoNReais

Assessment

Quiz

Mathematics, Science

8th Grade

Practice Problem

Hard

Created by

Manuela Pinto

Used 1+ times

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8 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Quais dos seguintes números são inferiores a 1?

a) 3917\frac{39}{17}

b) 4342\frac{43}{42}

c) 13\frac{1}{3}

d) 3939\frac{39}{39}

e) 1727\frac{17}{27}

2.

OPEN ENDED QUESTION

2 mins • Ungraded

Escreve por ordem crescente os seguintes números racionais:

 3,7;   3,021;  3,002; 3,012;  3,0033,7;\ \ \ 3,021;\ \ 3,002;\ 3,012;\ \ 3,003 

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3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 124\frac{-\frac{1}{2}}{-\sqrt{4}}  

Qual dos seguintes números representa o quociente:

a)  18-\frac{1}{8}  

b)  14\frac{1}{4}  

c)  1

d)  2-2  

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Determina o produto entre o simétrico de -9 e metade de (-8)

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Qual das seguintes potências representa um número negativo?

a) (3)10\left(-3\right)^{10}

b) (2)15\left(-2\right)^{15}

c) (10)12\left(-10\right)^{12}

d) (5)4×44\left(-5\right)^4\times4^4

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Escreve sob a forma de uma única potência: (259)×21029\frac{\left(\sqrt{25}-\sqrt{9}\right)\times2^{10}}{2^9}  

a)  424^2  

b)  212^1  

c)  232^3  

d)  222^2  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 48×(5)8(24)2=\frac{4^8\times\left(-5\right)^8}{\left(2^4\right)^2}=  

a) (10)8\left(-10\right)^8  

b)  80-80  

c)  10210^2  

d)  10410^4  

8.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

(21)2÷(3)2=\left(-21\right)^2\div\left(-3\right)^2=

a) 49-49

b) 14-14

c) 48-48

d) 4949