Integers Test

Result

Integers Test - 18

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Weekly Quiz Competition

Question 1
1 / -0

On subtracting $$- 7$$ from $$-14$$, we get.

A
$$-21$$

B
$$-7$$

C
$$-14$$

D
$$21$$

Solution

According to question, $$-14 -(-7)$$
$$=-14 + 7$$
$$=- 7$$
Question 2
1 / -0

What should be added to $$18 $$ to get $$- 34$$?

A
$$52$$

B
$$-52$$

C
$$-16$$

D
$$16$$

Solution

Let the number be $$x$$.
Then according to the problem we get,
$$x+18=-34$$
or $$x=-34-18$$
or $$x=-52$$.
Question 3
1 / -0

The successor of $$- 79$$ is

A
$$-80$$

B
$$-78$$

C
$$80$$

D
$$78$$

Solution

The successor of $$-79$$ is the integer just after it.
So the successor of the integer $$-79$$ is $$-79+1=-78$$.
Question 4
1 / -0

The predecessor of $$- 99$$ is

A
$$-98$$

B
$$-100$$

C
$$98$$

D
$$100$$

Solution

The predecessor of $$-99$$ is the integer just before the given number.
So the predecessor of $$-99$$ is $$-99-1=-100$$.
Question 5
1 / -0

The additive inverse of $$17 $$ is

A
$$-17$$

B
$$17$$

C
$$\dfrac {1}{17}$$

D
$$-\dfrac {1}{17}$$

Solution

The additive inverse of $$17$$ is $$-17$$ since $$17+(-17)=(-17)+17=0$$. Where $$0$$ is the additive identity.
Question 6
1 / -0

$$4$$ more than $$-5$$ is

A
$$9$$

B
$$-9$$

C
$$-1$$

D
$$1$$

Solution

$$4$$ more than $$-5$$ indicates
$$-5 + 4 = -1$$
$$4$$ more than $$-5$$ is $$-1$$
Option $$(C)$$ is the correct answer
Question 7
1 / -0

The successor of $$-18$$ is

A
$$-19$$

B
$$17$$

C
$$-17$$

D
$$19$$

Solution

Since in succession we move from left to the right on the number line.
And , $$-17$$ lies on right side of $$-18$$
Hence, $$-17$$ is the successor of $$-18$$
Option $$(C)$$ is the correct answer
Question 8
1 / -0

$$49 + (-27) =?$$

A
$$-73$$

B
$$73$$

C
$$22$$

D
None of these

Solution

$$(49) + (-27) $$
$$= 49 – 27$$
$$=22$$
Option $$(C)$$ is the correct answer
Question 9
1 / -0

Which of the following is a true statement?

A
$$-4 > -3$$

B
$$-4 < -3$$

C
$$-4$$ and $$-3$$ are non-comparable

D
None

Solution

$$-4$$ lies on left hand side of $$-3$$ on the number line.
Hence $$-4$$ is less than $$-3$$
$$\therefore -4 < -3$$
Option $$(B)$$ is the correct answer
Question 10
1 / -0

The predecessor of $$-16$$ is

A
$$-15$$

B
$$-17$$

C
$$15$$

D
$$17$$

Solution

To find the predecessor of a number we move from right to the left on the number line
And , $$-17$$ lies on left side of $$-16$$
Hence, $$-17$$ is the predecessor of $$-16$$
Option $$(B)$$ is the correct answer

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Re-Attempt Weekly Quiz Competition

Integers Test - 18

Result

Integers Test - 18

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Rank

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SHARING IS CARING

Question 1

$$-21$$

$$-7$$

$$-14$$

$$21$$

Solution

Question 2

$$52$$

$$-52$$

$$-16$$

$$16$$

Solution

Question 3

$$-80$$

$$-78$$

$$80$$

$$78$$

Solution

Question 4

$$-98$$

$$-100$$

$$98$$

$$100$$

Solution

Question 5

$$-17$$

$$17$$

$$\dfrac {1}{17}$$

$$-\dfrac {1}{17}$$

Solution

Question 6

$$9$$

$$-9$$

$$-1$$

$$1$$

Solution

Question 7

$$-19$$

$$17$$

$$-17$$

$$19$$

Solution

Question 8

$$-73$$

$$73$$

$$22$$

None of these

Solution

Question 9

$$-4 > -3$$

$$-4 < -3$$

$$-4$$ and $$-3$$ are non-comparable

None

Solution

Question 10

$$-15$$

$$-17$$

$$15$$

$$17$$

Solution

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