Integers Test

Result

Integers Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

What is the additive inverse of 6?

A
6

B
1

C
0

D
– 6

Solution

Additive inverse is a number when added to any number, results in zero.
Every number has a number with same value but opposite sign. This number is additive inverse.
So, additive inverse of 6 is – 6
because: 6 + (– 6) = 6 – 6 = 0
Question 2
1 / -0

What is the sum of – a, – a, + 1, and 0?

A
– 2a + 1

B
1

C
0

D
– 2a + 1

Solution

Sum of – a, – a, + 1, 0
= – a – a + 1 + 0
= – 2a + 1 or 1 – 2a
Question 3
1 / -0

If we subtract – 18 from – 86, what is the result?

A
– 68

B
+ 68

C
– 104

D
+ 104

Solution

Subtract – 18 from – 86
= – 86 – (– 18)
= – 86 + 18 = – 68
Question 4
1 / -0

What should be added to – 4 to get – 12?

A
– 16

B
+ 16

C
+ 8

D
– 8

Solution

Let the number to be added be x.
– 4 + x = – 12
x = – 12 – (– 4)
= – 12 + 4
x = – 8
Therefore – 8 should be added to – 4 to get – 12
Question 5
1 / -0

Which of the following expressions is true?

A
(– 5) – (– 4) = (– 4) – (– 5)

B
(– 5) – (– 4) > (– 4) – (– 5)

C
(–5) – (– 4) < (– 4) – (– 5)

D
(– 5) – (– 4) = 0 = (– 4) – (– 5)

Solution

(i) (– 5) – (– 4) = (– 4) – (– 5)

– 5 + 4 = (– 4) + 5

– 1 ≠ 1 (False)

(ii) (– 5) – (– 4) > (– 4) – (– 5)

– 5 + 4 > – 4 + 5

– 1 > 1 (False)

(iii) (– 5) – (– 4) < (– 4) – (– 5)

– 1 < 1 (True)

(iv) (– 5) – (– 4) = 0 = (– 4) – (– 5)

– 1 ≠ 0 ≠ 1 (False)
Question 6
1 / -0

The number 2 subtracted from the number 7 gives

A
– 9

B
5

C
– 5

D
9

Solution

7 – 2 = 5
Question 7
1 / -0

The smallest integer in the number system is

A
0

B
– 1

C
– 10000

D
No such integer exists

Solution

As the number system is countless, so we cannot write the smallest integer.
Question 8
1 / -0

Which of the following statements is true?

A
2 subtracted from – 3 gives 1.

B
– 1 subtracted from – 5 gives 6.

C
3 subtracted from – 8 gives – 11.

D
1 subtracted from – 7 gives – 6.
Question 9
1 / -0

On the number line, which of the following numbers is not to the left of – 10?

A
– 9

B
– 11

C
– 12

D
– 13

Solution

On the number line, – 9 is to the right of – 10.
Question 10
1 / -0

How many integers are there between – 2 and 2?

A
5

B
4

C
3

D
2

Solution

Integers between – 2 and 2 are:
– 1, 0, 1
So, 3 integers lie between – 2 and 2.

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Re-Attempt Weekly Quiz Competition

Integers Test - 2

Result

Integers Test - 2

Score

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Rank

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SHARING IS CARING

Question 1

6

1

0

– 6

Solution

Question 2

– 2a + 1

1

0

– 2a + 1

Solution

Question 3

– 68

+ 68

– 104

+ 104

Solution

Question 4

– 16

+ 16

+ 8

– 8

Solution

Question 5

(– 5) – (– 4) = (– 4) – (– 5)

(– 5) – (– 4) > (– 4) – (– 5)

(–5) – (– 4) < (– 4) – (– 5)

(– 5) – (– 4) = 0 = (– 4) – (– 5)

Solution

Question 6

– 9

5

– 5

9

Solution

Question 7

0

– 1

– 10000

No such integer exists

Solution

Question 8

2 subtracted from – 3 gives 1.

– 1 subtracted from – 5 gives 6.

3 subtracted from – 8 gives – 11.

1 subtracted from – 7 gives – 6.

Question 9

– 9

– 11

– 12

– 13

Solution

Question 10

5

4

3

2

Solution

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