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Fração OBM

Total questions: 92

Worksheet time: 3hrs 30mins

Name
Class
Date
1.

Which of these is NOT an Integer?

a)

42

b)

-35

c)

0

d)

3.8

2.

Which of these IS

a perfect square?

a)

44

b)

85

c)

121

d)

93

3.

In which quadrant would you find

( - x, + y )

a)

1

b)

2

c)

3

d)

4

4.

In which quadrant would you find

( 9, -6 )

a)

1

b)

2

c)

3

d)

4

5.

Which of these is NOT an Integer?

a)

30 / 5

b)

-20 / 2

c)

2 / 1

d)

-5 / 3

6.

Which of these IS NOT

a perfect square?

a)

196

b)

81

c)

121

d)

240

7.

On which AXIS is

(4,0)

located

a)

X

b)

Y

8.

On which AXIS is

(0 , -2)

located

a)

X

b)

Y

9.

Find the 7th term:

3, 7, 11, 15, 19, ...

a)

23

b)

27

c)

4

10.

Find the 8th term:

1, 2, 4, 8, 16, 32, ...

a)

64

b)

256

c)

128

11.

Identify the COMMON RATIO:

100, 50, 25, 12.5, 6.25, ...

a)

2

b)

0.5

c)

50

12.

Identify the COMMON RATIO:

3, 9, 27, 81, 243, ...

a)

3

b)

1/3

c)

6

13.

Identify the COMMON Difference:

3, 10, 17, 24, 31, ...

a)

-7

b)

7

c)

8

14.

Identify the COMMON Difference:

82, 71, 60, 49, 38, ...

a)

-11

b)

11

c)

21

d)

-21

15.

32 + 23 - 5 x 2 + 6 - 3

a)

27

b)

5

c)

10

d)

15

16.
Which property is represented?
3 + (15 + 4) = (3 + 15) + 4
a)
Commutative Property
b)
Associative Property
c)
Distributive Property
17.
Which property is represented?
44 + 99 = 99 + 44
a)
Commutative Property
b)
Associative Property
c)
Distributive Property
18.

Are the expressions equivalent and what property is used?

6 x 5 = 5 x 6

a)

Yes, Associative Proeprty

b)

Yes, Commutative Property

c)

Yes, Identity Property

d)

Not equivalent

19.

Are the expressions equivalent and what property is used?

(5 x 10) x 2 and 5 x (10 x 2)

a)

Yes, Commutative Property

b)

Not equal

c)

Yes, Associative Property

d)

Yes, Identity Property of Multiplication

20.
Which number sentence is an example of the associative property?
a)
19+6=5x5
b)
3x9=9+3
c)
3x(2x6)=(3x2)x6
d)
4x0-4+0
21.
Identity Property of Multiplication
a)
5 x 0 = 0
b)
8 x 3 = 3 x 8
c)
12 x 1 = 12
d)
8 + 0 = 8
22.
Which property does this represent:  9 x 1 = 9
a)
Identity
b)
Commutative
c)
Associative
d)
Distributive
23.
Which property is shown by the equation
2 + (3 x 11) = 2 + (11 x 3)
 ***BE CAREFUL!***
a)
Commutative Property of Addition 
b)
Commutative Property of Multiplication
c)
Associative Property of Addition 
d)
Associative Property of Multiplication 
24.
Which property is illustrated here?
6 x 1 = 6
a)
Identity property of addition
b)
Identity property of multiplication
c)
Commutative property of addition
d)
Commutative property of multiplication
25.
Which of the following properties describes the mathematical expression? 
6 + 7 + 2 = 2 + 6 + 7
a)
Associative
b)
Distributive
c)
Commutative
d)
Identity 
26.
Which of the following properties describes the mathematical expression? 
(a + 31) + b = a + (31 + b )
a)
Associative
b)
Distributive
c)
Commutative
d)
Identity
27.

Which property is used in the following expression?

(6 x 4) x 8 = 4 x (8 x 6)

a)

Associative Property of Multiplication

b)

Associative Property of Addition

c)

Distributive Property of Multiplication

d)

Commutative Property of Addition

28.

Which property of addition is used in the following?

(3 + 5) + 2 = 3 + (5 + 2)

a)

distributive property

b)

associative property

c)

identity property

d)

commutative property

29.

Which is an example of the Associative Property of Addition?

a)

(5 + 9) + 3 = 5 + (9 + 3)

b)

2 + (-2) = 0

c)

6 + 5 = 5 + 6

d)

4 + 0 = 4

30.

Which is an example of the Identity Property of Addition?

a)

(2 + 4) + 9 = 2 + (4 + 9)

b)

3 + 0 = 3

c)

8 x 1 = 8

d)

6 + 2 = 2 + 6

31.

Which equation shows the Commutative Property of Multiplication?

a)

4 x 9 = 9 x 4

b)

6 x 2 - 3 x 2 = (6 - 3) x 8

c)

8 x 3 = 8 + 8 + 8

d)

7 x 1 = 7

32.

Which of the following does NOT show the Commutative Property?

a)

6 + y = y + 6

b)

x + y = y + x

c)

xy - 7 = xy

d)

yx = xy

33.

Which equation shows the Identity Property of Multiplication?

a)

a x 1 = a

b)

a + a + a = 3 x a

c)

a(b + c) = ab + ac

d)

(a + b) + 7 = a + (7 + b)

34.

Which of the following is an example of the Commutative Property of Addition?

a)

(9 + 6) + 7 = 9 + (6 + 7)

b)

5 x 1 = 5

c)

2 + 4 = 3 + 2

d)

8 + 9 = 9 + 8

35.

Which operation will not change the value of any nonzero number?

a)

Multiplying by One

b)

Dividing by Zero

c)

Adding One

d)

Multiplying by Zero

36.

Which property is used in the following expression?

(a x b) x c = a x (b x c)

a)

Associative Property of Addition

b)

Associative Property of Multiplication

c)

Distributive Property

d)

Commutative Property of Addition

37.

Which Property of Addition does 7 + 0 = 7 illustrate?

a)

Zero Property

b)

Identity Property

c)

Distributive Property

d)

Commutative Property

38.

Which of the following does NOT show the Commutative Property of Addition?

a)

3 + x = x + 3

b)

a + b = b + a

c)

ab = ba

d)

3x + 4y = 4y + 3x

39.

A farmer has 150 rabbits. There are 4 times as many female rabbits as male rabbits. How many male and female rabbits are there?

a)

Male rabbits - 20

Female rabbits-60

b)

Male rabbits - 40

Female rabbits-160

c)

Male rabbits - 50

Female rabbits-150

d)

Male rabbits - 30

Female rabbits-120

40.

A mother is 40 years old, and her son is 10 years old. How many years must pass so that the age of the mother triples that of the child?

a)

8 years

b)

5 years

c)

10 years

d)

2 years

41.

A large square is made of 16 congruent squares. What is the total number of squares of different sizes are there?

a)

30 squares

b)

24 squares

c)

32 squares

d)

40 squares

42.

Find the sequence and fill in the blanks

(2, 1), (4, 4), (6, 9), (8, 16), (__, __)

What are the 2 numbers in the 5th group?

(a)  

43.

Annie, Betty and Corina went to the farm to pick apples. They picked 120 apples in all. Annie picked twice as many as Betty did, and Betty picked 3 times as many as Corina did. How many apples did they each pick?

a)

Corina- 16

Betty- 40

Annie -76

b)

Corina- 10

Betty- 32

Annie -68

c)

Corina- 12

Betty- 36

Annie -72

d)

Corina- 14

Betty- 38

Annie -74

44.

Two cars leave the city at 9 am in the same direction on the same road. One car averages 70 km/h while the other averages 90 km/H. At what time will they be 70 km apart?

(a)  

45.

 Today is Saturday. What day of the week is it 200 days from today?

                        

a)

Wednesday

b)

Monday

c)

Thursday

d)

Sunday

46.

Sixth grade classes at Maasin Elementary School completed a Math test. The average score of the female students is 84, and the average score of the male students is 86. There are 62 girls, and 50 boys in the 6th grade. What is the average math test score of the entire 6th grade?

(a)  

47.

It takes 10 workers to machine 150 parts a day. How many workers does it take to machine 60 parts in one day?

a)

4

b)

6

c)

8

d)

10

48.

What is the surface area of the following structure made of 5 cubes glued together? The side of each cube is 1 inch. Only consider the surfaces that are not glued to another cube.

                                        

a)

30

b)

36

c)

22

d)

24

49.

12 people go to a meeting. How many hands will they shake if they all shake each other's hands?

a)

55

b)

66

c)

44

d)

77

50.

Twice a number added to 13 is equal to 27. What is the number?

(a)  

51.

If 73 is one more than twice a number, what is 50% of the number?

(a)  

52.

The area of the rectangle is 224 square inches. The length of the rectangle is 14 inches. What is the perimeter of the rectangle?

                                                  

a)

58 inches

b)

62 inches

c)

66 inches

d)

60 inches

53.

On a long street, Paula walked for 45 minutes at 3 km/h and then ran for half an hour at x km/h. At the end of that point she was 6 km from the starting point. Find the value of x.

a)

3.2 km/hr

b)

13.5 km/hr

c)

7.5 km/hr

d)

4.5 km/hr

54.

The perimeter of the square is 24 cm. if its side is increased by 50%, what is the area of the new square?

a)

A = 80 cm280\ cm^2    

b)

A = 61 cm261\ cm^2    

c)

A = 91 cm291\ cm^2    

d)

A = 81 cm281\ cm^2    

55.

 A dealer has 120 cavans of rice in his storage room. If this is 80% of his stock,

how many cavans does he originally have?

(a)  

56.

 A man sold 1/3 of his land. He gave 1/3 of the remaining portion to his son and daughter each. What fraction of his land is left with him?

(a)  

57.

In the number 47_ , what is the digit to be placed in the blank so that the number is divisible by 6?

(a)  

58.

 The ratio of the kids to adults at a different party is 3:5. if there are 26 more adults than kids, then how many kids are there in the party?

a)

49 kids are in the party

b)

30 kids are in the party

c)

32 kids are in the party

d)

39 kids are in the party

59.

Qual a regra básica para solucionar uma divisão de frações?

a)

Divide numerador com numerador e denominador com denominador

b)

Divide a primeira fração pelo inverso da segunda

c)

Multiplica a primeira fração pelo inverso da segunda

d)

Multiplica o numerador com numerador e denominador com denominador

60.

Como é chamado o tipo de fração onde o numerador é maior que o denominador.

Ex: 94\frac{9}{4}  

4 lines
61.

Qual tipo de operação é considerado um absurdo matemático?

a)

102541456\frac{10254}{1456}  

b)

9 349\ \frac{3}{4}  

c)

(94)68\sqrt[8]{\left(\frac{9}{4}\right)^6}  

d)

40\frac{4}{0}  

62.

Qual o resultado da operação 1 14 + 121\ \frac{1}{4}\ +\ \frac{1}{2}  ?

a)

93\frac{9}{3}  

b)

45\frac{4}{5}  

c)

1 341\ \frac{3}{4}  

d)

00  

63.

Como é realizado a operação de potenciação de uma fração no exemplo abaixo:

(12)2\left(\frac{1}{2}\right)^2  

4 lines
64.

O nome para a fração cujo numerador é maior que o denominador é ...

(a)  

65.

Sol comeu 1/3 de um bolo e Isac comeu 2/5 do mesmo bolo. Que fração representa a parte do bolo que os dois comeram juntos?

-Para responder essa pergunta observe as frações equivalentes, faça a operação mentalmente e assinale a alternativa que soluciona o problema.

a)

11/15

b)

11/5

c)

12/15

d)

15/15

66.

Luana comeu 4/7 de uma barra de chocolate e deu 4/14 para Lívia. Qual fração corresponde a parte que sobrou de seu chocolate?

-Para responder essa pergunta observe as frações equivalentes, faça a operação mentalmente e assinale a alternativa que soluciona o problema.

a)

9/14

b)

12/14

c)

4/14

d)

13/14

67.

Numa prova de ciências um aluno acertou 6/8 do número de questões existentes na atividade. Qual fração representa o número de questões que o aluno errou?

a)

2/8

b)

3/8

c)

9/8

d)

8/8

68.

Analise as alternativas e assinale apenas aquela em que o cálculo correto.

a)
b)
c)
d)
69.

Ana, Marta e Silvana foram a pizzaria e cada uma comeu 2/4de uma pizza. Quantas pizzas elas comeram?

-Assinale a alternativa que corresponde ao cálculo que soluciona o problema.

a)
b)
c)
d)
70.

Marinete fez uma torta de chocolate e quer dividir igualmente 5/6 da torta entre seus 2 irmãos. Cada irmão ficará com que parte da torta?

-Observe o cálculo e assinale a alternativa que interpreta o cociente.

a)

Cada irmão ficará a metade da torta.

b)

Cada irmão ficará com mais da metade da torta.

c)

Cada irmão ficará com menos da metade da torta

d)

Cada irmão ficará com uma torta inteira.

71.

Vanessa comprou 1/2 de uma torta de frango e vai repartir igualmente entre seus 4 colegas. Que fração representa a porção da torta que cada colega irá receber?

-Assinale a alternativa que soluciona a situação-problema.

a)
b)
c)
d)
72.

Assinale a alternativa que apresenta uma sequência de frações equivalentes.

a)
b)
c)
d)
73.

Sol ganhou uma caixa de bombons. Comeu 2/5 da quantidade de bombons em um dia e, no dia seguinte, 1/2. Qual fração corresponde a quantidade de bombons que Sol comeu?

-Para responder essa pergunta observe as frações equivalentes e assinale a alternativa que soluciona o problema.

a)

16/10

b)

15/10

c)

5/10

d)

9/10

74.

Margarida comprou um celular por R$ 2 400,00. Ela pagou de entrada 2/6 do valor total do aparelho e parcelou o restante. Qual o valor que Margarida ainda tem que pagar pelo aparelho?

-Assinale a alternativa que corresponde ao cálculo correto.

a)
b)
c)
d)
75.

Numa central de correios de Natal/RN, 2/10 das cartas vão para Recife, 5/10 vão para Fortaleza e o restante fica em Natal. Qual a fração que representa a quantidade de cartas que fica em Natal?

a)

5/10

b)

4/10

c)

6/10

d)

3/10

76.

Natashe, Jéssica e Anny compraram uma torta de limão. Natashe comeu 2/12, Jéssica5/12 e Anny, 3/12. Qual fração representa a parte que sobrou da torta?

a)

5/12

b)

4/12

c)

2/12

d)

3/12

77.

Tina tem 30 laços de cabelo e deu 3/6 desses laços para sua amiga Samara. Qual a quantidade de laços que foram entregues a Samara?

a)

15 laços

b)

16 laços

c)

5 laços

d)

13 laços

78.

Carla comprou um bolo para o lanche coletivo. Se 1/8 do bolo custou R$ 5,00, quanto custou o bolo inteiro?

a)

R$ 20,00

b)

R$ 18,00

c)

R$ 40,00

d)

R$ 30,00

79.

Lucyanne e Adriana compraram uma barra de chocolate que estava dividida em 12 partes iguais. Lucyanne comeu 6/12 e Adriana, 1/2 da barra de chocolate. Qual fração representa a quantidade de chocolate que as duas amigas comeram juntas?

a)

12/12

b)

3/12

c)

7/10

d)

6/10

80.

Macêdo comprou um saco com 100 balinhas e dividiu 2/4 dessas balinhas com seus colegas. Qual a quantidade de balinhas que Macêdo dividiu com seus colegas?

a)

30 balinhas

b)

20 balinhas

c)

50 balinhas

d)

40 balinhas

81.
O termo superior de uma fração é chamado de:
a)
Divisor
b)
Resto
c)
Denominador
d)
Numerador
82.

Na multiplicação de 4/5 x10/2 o resultado simplificado é?

a)

1/2

b)

2

c)

4

d)

2/25

83.

A Marcela está de dieta e agora só pode comer 1/4 de 2/3 de um chocolate. Que fração de chocolate pode comer?

a)

6/4

b)

5/12

c)

2/12

d)

1/2

84.

A operação 2/3 x 4/3 tem como o resultado que número?

a)

nove oitavos

b)

oito terços

c)

oito sextos

d)

oito nonos

85.

O professor Joaquim escolheu 2/5 dos seus 20 alunos do 5º ano para a Gincana da Amizade. Quantos alunos foram escolhidos?

a)

15

b)

6

c)

10

d)

8

86.

Qual é o resultado da expressão com frações abaixo.

4/3 x1/2

a)

8/3

b)

4/5

c)

16/12 = 4/3

d)

4/6 = 2/3

87.

Calcula:

2 X 5/6 =

a)

10/12

b)

10/6

c)

6/10

d)

3/4

88.

O resultado deste quociente é três meios?

a)

Sim

b)

Não

89.

Qual é o resultado deste quociente?

a)

16/5

b)

8/10

c)

16/10

d)

9/7

90.

Quanto dá esta divisão?

a)

vinte e oito terços

b)

Cinco décimos

c)

Quatro Sétimos

d)

Vinte e oito quartos

91.

Qual é o inverso de três oitavos?

a)

8/8

b)

3/8

c)

1/8

d)

8/3

92.

Qual é o inverso desta fração?

a)
b)
c)

nenhuma das anteriores

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