Integers Test

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Integers Test - 32

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following expressions is not true ?

A
$$2 > -1$$

B
$$-5 < -2$$

C
$$0 < 7$$

D
$$-6 > -5$$

Solution

Given $$(A)2>-1$$ $$(B)-5<-2$$ $$(C)0<7$$ $$(D)-6>-5$$

out of the given expressions only option $$D$$ is wrong as $$-6$$ is less than $$-5$$
Question 2
1 / -0

$$(-37) + 6 =?$$

A
$$-43$$

B
$$-31$$

C
$$31$$

D
None of these

Solution

$${\textbf{Step -1: Solve using BODMAS rule}}{\textbf{.}}$$
$$\Rightarrow\left( { - 37} \right) + 6$$ $$ = - 37 + 6$$
$$ = - 31$$

$${\textbf{Hence, the correct option is B.}} $$
Question 3
1 / -0

$$(-42) + (-35) =?$$

A
$$-7$$

B
$$7$$

C
$$-77$$

D
None of these

Solution

$$(-42) + (-35)$$
$$ = -42 – 35$$
$$=-(42+35)=-77$$
Option $$(C)$$ is the correct answer
Question 4
1 / -0

Mark against the correct answer in the following:
$$(-36)\div (-9) = ?$$

A
$$4$$

B
$$-4$$

C
$$2$$

D
$$3$$

Solution

We have:
$$-36 \div(-9)$$

$$\dfrac{-36}{-9}$$

$$=4$$
Question 5
1 / -0

Mark against the correct answer in the following:
$$0 \div (-5) = ?$$

A
-5

B
0

C
5

D
not defined

Solution

We have $$0 \div (-5)$$
And we know that if we divide $$0$$ by any number we get the result as $$0$$
So, $$0\div (-5)=0$$
Question 6
1 / -0

Which of the following is the multiplicative identity for an integer a?

A
a

B
1

C
0

D
-1

Solution

Option (b) is correct; 1 is the multiplicative identity for an integer a.
Question 7
1 / -0

$$(-25) \times[6+4]$$ is not same as

A
$$(-25) \times 10$$

B
$$(-25) \times 6+(-25) \times 4$$

C
$$(-25) \times 6 \times 4$$

D
$$-250$$

Solution

Option (c) is correct.
$$(-25) \times[6+4] \neq(-25) \times 6 \times 4$$
Question 8
1 / -0

$$-35 \times 107$$ is not same as

A
$$-35 \times(100+7)$$

B
$$(-35) \times 7+(-35) \times 100$$

C
$$-35 \times 7+100$$

D
$$(-30-5) \times 107$$

Solution

given expression : $$-35\times 107$$

this can be written as
$$-35\times (100+7)$$ or
$$-35\times 7+100$$ or
$$(-30-5)\times 107$$

Option $$C$$ is correct as
$$-35 \times 107 \neq-35 \times 7+100$$
Question 9
1 / -0

$$(-10) \times(-5) \times (-2)$$ is equal to

A
$$-50$$

B
$$70$$

C
$$-100$$

D
$$100$$

Solution

Option (d) is correct
$$\Rightarrow(-10 \times-5 \times (-2)=-100$$
Question 10
1 / -0

Encircle the odd one of the following

A
$$(-100) \div 5$$

B
$$(-81) \div 9$$

C
$$(-75) \div 5$$

D
$$(-32) \div 9$$

Solution

Option (d) is correct.
(a) $$\dfrac{(-100)}{5}=-20$$
(b) $$\dfrac{(-81)}{9}=-9$$
$$(c)$$$$\dfrac{(-75)}{5}=-15$$
$$(d)$$$$\dfrac{(-32)}{9}=\dfrac{-32}{9}$$

By the above calculation, we can see that option d is not an integer while other options are integers. Thus, option d is different from all others.

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Re-Attempt Weekly Quiz Competition

Integers Test - 32

Result

Integers Test - 32

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SHARING IS CARING

Question 1

$$2 > -1$$

$$-5 < -2$$

$$0 < 7$$

$$-6 > -5$$

Solution

Question 2

$$-43$$

$$-31$$

$$31$$

None of these

Solution

Question 3

$$-7$$

$$7$$

$$-77$$

None of these

Solution

Question 4

$$4$$

$$-4$$

$$2$$

$$3$$

Solution

Question 5

-5

0

5

not defined

Solution

Question 6

a

1

0

-1

Solution

Question 7

$$(-25) \times 10$$

$$(-25) \times 6+(-25) \times 4$$

$$(-25) \times 6 \times 4$$

$$-250$$

Solution

Question 8

$$-35 \times(100+7)$$

$$(-35) \times 7+(-35) \times 100$$

$$-35 \times 7+100$$

$$(-30-5) \times 107$$

Solution

Question 9

$$-50$$

$$70$$

$$-100$$

$$100$$

Solution

Question 10

$$(-100) \div 5$$

$$(-81) \div 9$$

$$(-75) \div 5$$

$$(-32) \div 9$$

Solution

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