Integers Test

Result

Integers Test - 8

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

I note in my accounts book positive numbers for profits and negative numbers for losses that I make in my business. These are the entries in the book for the last seven days: 21,−19,11,−20,17,25and−13. How much profit did I make in the last week?

A
32

B
22

C
34

D
24

Solution

Profit earned by me =21+11+17+25=74 Loss earned by me =−19−20−13=−52 Net profit earned by me =74+(−52)=74−52=22
Question 2
1 / -0

What is the representation of 30 km towards the west?

A
−30 km

B
30 km east

C
30 km

D
30

Solution

West is represented by a negative integer.
Question 3
1 / -0

What is the additive identity for the set of integers?

A
0

B
(−1)

C
1

D
+10

Solution

0 is identity element with respect to addition of integers, e.g., (−5)+0=+0+(−5)=(−5)
Question 4
1 / -0

If a positive sign precedes a bracket, what happens to the terms inside it?

A
Signs of the terms will be changed

B
Every term is reciprocated

C
Every term will become zero.

D
No change occurs in any of the terms.

Solution

If a positive sign precedes a bracket, the signs of the terms inside the bracket are not changed.
Question 5
1 / -0

If a negative sign precedes a bracket, what happens to the terms inside it?

A
Their signs are changed.

B
The terms are reciprocated.

C
The signs remain the same

D
The terms are doubled.

Solution

If a negative sign precedes a bracket, the signs of the terms inside the bracket are changed.
Question 6
1 / -0

Which of the following statements is INCORRECT?

A
The multiplicative identity for integers is 1.

B
Subtraction does not obey commutative law in integers

C
Multiplication of two integers with unlike signs is always positive.

D
Multiplicative inverse of integer a is 1/a.

Solution

Multiplication of two integers with unlike signs is negative,

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Integers Test - 8

Result

Integers Test - 8

Score

-

Rank

-

SHARING IS CARING

Question 1

32

22

34

24

Solution

Question 2

−30 km

30 km east

30 km

30

Solution

Question 3

0

(−1)

1

+10

Solution

Question 4

Signs of the terms will be changed

Every term is reciprocated

Every term will become zero.

No change occurs in any of the terms.

Solution

Question 5

Their signs are changed.

The terms are reciprocated.

The signs remain the same

The terms are doubled.

Solution

Question 6

The multiplicative identity for integers is 1.

Subtraction does not obey commutative law in integers

Multiplication of two integers with unlike signs is always positive.

Multiplicative inverse of integer a is 1/a.

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.