Integers Test

Result

Integers Test - 9

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Weekly Quiz Competition

Question 1
1 / -0

Evaluate:
$$(+42) + (-64) $$

A
$$-22$$

B
$$28$$

C
$$+22$$

D
None of these

Solution

(+42)+(-64)=-22
Question 2
1 / -0

Difference of $$898$$ and $$386 $$

A
$$-310$$

B
$$-822$$

C
$$510$$

D
$$512$$

Solution

898-386= 512
Question 3
1 / -0

Subtract $$-30$$ from $$-10 $$.

A
$$+20$$

B
$$40$$

C
$$-20$$

D
$$-40$$

Solution

$$-10 - (-30) = (-10) + (+30) = (+20)$$
Question 4
1 / -0

Compare:
$$31,505 \quad \square \quad31,550$$

A
$$>$$

B
$$<$$

C
$$=$$

D
None of these

Solution

On comparing both numbers we see that one number is $$505$$ and another is $$550.$$

And $$55$$ is greater than $$50$$ so,

$$31,505 < 31,550$$

So, option B is the correct answer.
Question 5
1 / -0

$$(-36) + (+12)$$ is equal to

A
$$+24$$

B
$$27$$

C
$$-24$$

D
None of these

Solution

$$(-36)+(+12)=-36+12=-24$$
Question 6
1 / -0

Compare $$\displaystyle 24\quad \Box \quad -28$$

A
$$<$$

B
$$=$$

C
$$\displaystyle \neq $$

D
$$>$$

Solution

24 is obviously greater than -28 ...we can observe this from the number line..
Question 7
1 / -0

Compare: $$1,00,002 \quad \square \quad 10,00,002$$

A
$$>$$

B
$$<$$

C
$$=$$

D
None of these

Solution

If we write the given numbers in words well be easily able to solve this.
One lakh two and the second number is ten lakh two.
Obviously the second number is greater then the first.
So option B is the correct answer.
Question 8
1 / -0

The smallest positive integer is

A
0

B
10

C
1

D
9

Solution

$$\textbf{Step 1: Use the definition of integer and simply according to the given condition}$$
$$\text{We know that integer is a number that is not a fraction.}$$
$$\implies x=\text{{.....-3, -2, -1, 0, 1, 2, 3,....}}$$

$$\text{According to the question, we need a positive integer,}$$
$$\implies x>0$$
$$ \implies(x \epsilon \space Z,\space x>0)$$
$$\implies x=\text{{1, 2, 3,....}}$$

$$\text{The smallest element in the above set is 1}$$

$$\textbf{Thus, the smallest positive integer is 1}$$
Question 9
1 / -0

Which of the following is correct?

A
If $$-4 <3$$, then $$4 < -3$$

B
If $$-2 <5$$, then $$2>5$$

C
If $$0 > -7$$, then $$0 < 7$$

D
If $$8 > 1$$, then $$-8 > -1$$

Solution

Given (A) $$-4 < 3$$ is correct but $$4 < -3$$ is wrong because $$4$$ is always greater than $$-3$$.
(B) If $$-2 < 5,$$ then it is correct but $$2>$$ 5 is wrong because $$5$$ is always greater than $$2$$
(C) If $$0 >-7$$ is correct then $$0 < 7$$ is also correct as multiplying by minus sign changes the operator from greater than to smaller than and vice versa.
(D) If $$8 > 1$$ is write then $$-8 > -1$$ is wrong multiplying by minus sign changes the operator from greater than to smaller than and vice versa.
Hence, option (C) is correct.
Question 10
1 / -0

On a horizontal number line, negative numbers are located on the ____ side of $$0.$$

A
Right

B
Left

C
Above

D
Below

Solution

Negative numbers are located on the left side of $$0$$ and positive numbers are located on the right side of $$0.$$

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Re-Attempt Weekly Quiz Competition

Integers Test - 9

Result

Integers Test - 9

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SHARING IS CARING

Question 1

$$-22$$

$$28$$

$$+22$$

None of these

Solution

Question 2

$$-310$$

$$-822$$

$$510$$

$$512$$

Solution

Question 3

$$+20$$

$$40$$

$$-20$$

$$-40$$

Solution

Question 4

$$>$$

$$<$$

$$=$$

None of these

Solution

Question 5

$$+24$$

$$27$$

$$-24$$

None of these

Solution

Question 6

$$<$$

$$=$$

$$\displaystyle \neq $$

$$>$$

Solution

Question 7

$$>$$

$$<$$

$$=$$

None of these

Solution

Question 8

0

10

1

9

Solution

Question 9

If $$-4 <3$$, then $$4 < -3$$

If $$-2 <5$$, then $$2>5$$

If $$0 > -7$$, then $$0 < 7$$

If $$8 > 1$$, then $$-8 > -1$$

Solution

Question 10

Right

Left

Above

Below

Solution

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