# Number Systems (IMO- Mathematics Olympiad Class 6): Questions 76 - 82 of 84

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## Question number: 76

» Number Systems

MCQ▾

### Question

While removing brackets the order in which the brackets are removed is

### Choices

Choice (4) Response

a.

(), {}, []

b.

{}, (), []

c.

[], {}, ()

d.

[], (), {}

## Question number: 77

» Number Systems

MCQ▾

### Question

Square of any negative integer is

### Choices

Choice (4) Response

a.

Negative

b.

0

c.

Depend on the nature of integer

d.

Positive

## Question number: 78

» Number Systems

MCQ▾

### Question

The expression is equivalent to, uses the ________ property.

### Choices

Choice (4) Response

a.

Distributive

b.

Identity

c.

Commutative

d.

Closure

## Question number: 79

» Number Systems

MCQ▾

### Question

Which of the following set of numbers will make the number sentence true?

________________________ = 61

### Choices

Choice (4) Response

a.

(7, 9, 2)

b.

(5, 10, 8)

c.

(9, 6, 4)

d.

(7, 9, 8)

## Question number: 80

» Number Systems

MCQ▾

### Question

Multiplying a negative integer for odd number of times gives a ________ result.

### Choices

Choice (4) Response

a.

0

b.

Positive

c.

Negative

d.

Question does not provide sufficient data or is vague

## Question number: 81

» Number Systems

MCQ▾

### Question

Find the sum of the given expression.

### Choices

Choice (4) Response

a.

- 21

b.

- 292

c.

315

d.

40

## Question number: 82

» Number Systems

MCQ▾

### Question

Which one is correct?

### Choices

Choice (4) Response

a.

b.

c.

d.

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