# Mathematics-Rational Numbers [NSTSE (National Science Talent Search Exam- Unified Council) Class 7]: Questions 1 - 6 of 70

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## Question 1

Rational Numbers

### Question

MCQ▾

Which of the following alternatives is wrong? Given that

(I) Difference of two rational numbers is a rational number

(II) Subtraction is commutative on rational numbers

(III) Addition is not commutative on rational numbers

### Choices

Choice (4)Response

a.

(I) only

b.

(I) and (III)

c.

(II) and (III)

d.

None of the above

## Question 2

Rational Numbers

MCQ▾

is a

### Choices

Choice (4)Response

a.

Either positive or negative rational number

b.

Negative rational number

c.

Neither positive nor negative rational number

d.

Positive rational number

## Question 3

Rational Numbers

MCQ▾

is a

### Choices

Choice (4)Response

a.

Positive rational number

b.

Neither positive nor negative rational number

c.

Either positive or negative rational number

d.

Negative rational number

## Question 4

Rational Numbers

### Question

MCQ▾

What number should be added to so as to get ?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 5

Rational Numbers

### Question

MCQ▾

Name the property of multiplication illustrated by

### Choices

Choice (4)Response

a.

Distributive property

b.

Associative property

c.

Commutative property

d.

None of the above

## Question 6

Rational Numbers

### Question

MCQ▾

How many pieces of equal size can be cut from a rope of 50 meters long, each measuring meters?

### Choices

Choice (4)Response

a.

12

b.

15

c.

5

d.

10

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