Integers Test

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Integers Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

Integers are not closed under:

A
Addition

B
Multiplication

C
Subtraction

D
Division

Solution

Integers are not closed under division.
Question 2
1 / -0

Which of the following is associative law of addition?

A
a + (b + c) = a + b + c

B
a + (b + c) = a + (b + c)

C
a + (b + c) = (a + b) + c

D
a + (b - c) = (a - b) + c

Solution

a + (b + c) = (a + b) + c is associative law of addition.
Question 3
1 / -0

An entertainment company charged Rs. 200 per ticket for a show. The capacity of the show was 500 people but due to over booking the manager had to return Rs. 300 to 100 people. What is the company's total earning from the show?

A
-90000

B
-40000

C
90000

D
-30000

Solution

Number of tickets sold = 500 + 100

Total money charged from people = 200 × 600 = 120000

Money to be given back to 100 people = -300 × 100 = -30000

Total money earned = 120000 + (-30000) = 120000 - 30000 = Rs.90000
Question 4
1 / -0

What is the additive inverse of -125?

A
1

B
125

C
-125

D
0

Solution

We know that the additive inverse of an integer x is -x

Now, additive inverse of -125 is -(-125) which is 125
Question 5
1 / -0

Additive inverse of a number x added to itself gives

A
0

B
x

C
-2x

D
-x

Solution

Additive inverse of x is -x.

-x added to x gives

x + (-x) = x - x = 0
Question 6
1 / -0

What is the integer obtained by adding additive inverse of -53 to additive inverse of 35?

A
-35

B
-18

C
53

D
18

Solution

Additive inverse of -53 is 53

Additive inverse of 35 is -35

Now adding additive inverse of -53 to additive inverse of 35, we get

53 + (-35) = 53 - 35 = 18
Question 7
1 / -0

Which of the following integers is same as its additive inverse?

A
-1

B
5

C
0

D
1

Solution

We know that the additive inverse of an integer x is -x

Now, additive inverse of 0 is -(0) which is again 0.
Question 8
1 / -0

Natural numbers, zero and the negatives of natural numbers together constitutes _______ .

A
Integers

B
Whole numbers

C
Real numbers

D
Fractions

Solution

Natural numbers, zero and the negatives of natural numbers together constitutes integers.
Question 9
1 / -0

Each negative integer is smaller than

A
-10

B
-2

C
zero

D
-1

Solution

On a number line all negative integers lie to the left of 0. Hence, each negative integer is smaller than zero
Question 10
1 / -0

As per commutative law, 4 + 7 =

A
4 - 7

B
7 x 4

C
4 + (7)

D
7 + 4

Solution

As per commutative law, 4 + 7 = 7 + 4.

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Re-Attempt Weekly Quiz Competition

Integers Test - 2

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Integers Test - 2

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Question 1

Addition

Multiplication

Subtraction

Division

Solution

Question 2

a + (b + c) = a + b + c

a + (b + c) = a + (b + c)

a + (b + c) = (a + b) + c

a + (b - c) = (a - b) + c

Solution

Question 3

-90000

-40000

90000

-30000

Solution

Question 4

1

125

-125

0

Solution

Question 5

0

x

-2x

-x

Solution

Question 6

-35

-18

53

18

Solution

Question 7

-1

5

0

1

Solution

Question 8

Integers

Whole numbers

Real numbers

Fractions

Solution

Question 9

-10

-2

zero

-1

Solution

Question 10

4 - 7

7 x 4

4 + (7)

7 + 4

Solution

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