Mathematical Operations Questions

Q:

Select the missing number from the given responses.

A) 45 B) 65
C) 70 D) 80
 
Answer & Explanation Answer: B) 65

Explanation:
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32 2237
Q:

In the following question, correct the equation by interchanging two signs.
6 + 8 ÷ 4 – 4 = 8

A) ÷ and = B) ÷ and +
C) ÷ and – D) + and –
 
Answer & Explanation Answer: D) + and –

Explanation:
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5 2135
Q:

5068 / 37 x 4 = ?

A) 548 B) 625
C) 214 D) 745
 
Answer & Explanation Answer: A) 548

Explanation:

? = 5068 x 4/37

? = 548

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20 2077
Q:

What is x squared plus x squared?

A) 4x B) 2x^2
C) x^4 D) 2x
 
Answer & Explanation Answer: B) 2x^2

Explanation:

In an algebraic expression, like terms are terms that contain the same variables raised to the same powers. Calculating x-squared plus x-squared is a matter of combining like terms. 

Now x^2 + x^2 = 2x^2

 

Hence, x-squared plus x-squared is equal to 2 times x squared.

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8 2070
Q:

If "–" stands for "÷", "+"stands for "x", "÷" for "–" and "x" for "+", which of the following equations is correct?

A) 40 – 10 + 5 ÷ 4 x 5 = 21 B) 40 + 10 – 4 x 5 ÷ 3 = 80
C) 40 ÷ 10 – 4 x 5 + 3 = 32 D) 8 – 4 x 40 ÷ 2 + 15 = 30
 
Answer & Explanation Answer: A) 40 – 10 + 5 ÷ 4 x 5 = 21

Explanation:
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17 2034
Q:

3 x 3 + 3 - 3 + 3 = ?

A) 9 B) 12
C) -3 D) 3
 
Answer & Explanation Answer: B) 12

Explanation:

Using BODMAS law,

3 x 3 + 3 - 3 + 3 =

3 x 3 = 12

= 12 + 3 - 3 + 3

=  9 + 3

= 12

 

Hence, 3 x 3 + 3 - 3 + 3 = 12.

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19 1984
Q:

Can you Solve 7 + 7 ÷ 7 + 7 x 7 + 7 - 7 ÷ 7 + 7 x 7 =

A) 112 B) 56
C) 0 D) 98
 
Answer & Explanation Answer: A) 112

Explanation:

7  + 7 ÷ 7 + 7 x 7 + 7 - 7 ÷ 7 + 7 x 7= 7 + 1 + 49 + 7 - 1 + 49= 8 + 56 + 48= 56 + 56= 112

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22 1960
Q:

The following equation is incorrect. Which two signs should be interchanged to correct the equation? 15 x 12 + 40 ÷ 40 - 6 = 21

A) + and x B) + and ÷
C) - and + D) ÷ and x
 
Answer & Explanation Answer: A) + and x

Explanation:
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5 1809