Integers Test

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Integers Test - 4

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Weekly Quiz Competition

Question 1
1 / -0

Geetika is thinking of a number which is 7 more than [-9 + [-5]]. Find the number.

A
-7

B
7

C
-14

D
14

Solution

Required integer = 7 + [-9 + [-5]]
= 7 + [-9 - 5] = 7 - 14 = -7
Question 2
1 / -0

Which of the following is the smallest integer?

A
-75

B
-83

C
-79

D
-78

Solution

Integer means a whole number; a number that is not a fraction.

Hence, -83 is the smallest integer.
Question 3
1 / -0

The sum of (-19 - 20) and (25 - (-45)) is

A
23

B
29

C
31

D
37

Solution

Required sum is
(-19 - 20) + (25 - (-45))
= -39 + 70 = 31
Question 4
1 / -0

Which of the following is true?

A
Positive numbers ⊂ natural numbers ⊂ rational numbers

B
Natural numbers ⊂ whole numbers ⊂ rational numbers

C
Whole numbers ⊂ natural numbers ⊂ positive numbers

D
None of these

Solution

All positive numbers are natural numbers and all natural numbers are rational numbers.
Question 5
1 / -0

Which of the following signs will fill the blank to make the expression true?

[-7] - [-4] + 3____ [-7] + [-4 - 3]

A
>

B
=

C
<

D
None of these

Solution

LHS = [-7] - [-4] + 3 = -7 + 4 + 3 = -7 + 7 = 0
RHS = -7 -4 -3 = -14
Now, 0 > -14
Question 6
1 / -0

Kajal wants to explain the relationship between whole numbers and natural numbers. Out of the given options which would be the correct definition?

A
Every whole number is a natural number except -1.

B
Every whole number is a natural number except 0.

C
Every whole number is a natural number except 1.

D
Every whole number is a natural number except infinity.

Solution

Every whole number is a natural number except 0. Whole numbers start from zero and natural numbers start from 1.
Question 7
1 / -0

Select the correct statement.

A
A negative number multiplied by a negative number gives a positive number.

B
A positive number multiplied by a negative number gives a positive number.

C
A positive number multiplied by a positive number gives a negative number.

D
None of these

Solution

When a negative number is multiplied by a negative number it gives a positive number.

Example -2 × -2 = 4.
Question 8
1 / -0

Roshini is observing the change in temperature. Which among the following shows the minimum rise in temperature?

A
0°C to 12°C

B
-6°C to 7°C

C
-12°C to 12°C

D
-15°C to -1°C

Solution

1. Rise in temperature = [12 - 0] = 12°C
2. Rise in temperature = 6- [-7] = 13°C
3. Rise in temperature= 12- [-12] = 24°C
4. Rise in temperature= -1- [-15] = 14°C

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Re-Attempt Weekly Quiz Competition

Integers Test - 4

Result

Integers Test - 4

Score

-

Rank

-

SHARING IS CARING

Question 1

-7

7

-14

14

Solution

Question 2

-75

-83

-79

-78

Solution

Question 3

23

29

31

37

Solution

Question 4

Positive numbers ⊂ natural numbers ⊂ rational numbers

Natural numbers ⊂ whole numbers ⊂ rational numbers

Whole numbers ⊂ natural numbers ⊂ positive numbers

None of these

Solution

Question 5

>

=

<

None of these

Solution

Question 6

Every whole number is a natural number except -1.

Every whole number is a natural number except 0.

Every whole number is a natural number except 1.

Every whole number is a natural number except infinity.

Solution

Question 7

A negative number multiplied by a negative number gives a positive number.

A positive number multiplied by a negative number gives a positive number.

A positive number multiplied by a positive number gives a negative number.

None of these

Solution

Question 8

0°C to 12°C

-6°C to 7°C

-12°C to 12°C

-15°C to -1°C

Solution

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