Mathematical Operations Question and Answers

Question 1

Interchanges given: + and - signs, 4 and 8.

Accepted Answer

4 - 8 + 12 = 0

Answer

8 + 4 - 12 = 24

Answer

8 - 4 + 12 = 8

Answer

4 + 8 - 12 = 12

Question 2

Determine which two signs need to be switched in order for the following equation to be accurate.
5 + 3 x 8 - 12 / 4 = 3

Accepted Answer

"-" and /

Answer

"+" and /

Answer

"+" and "+"

Answer

"+" and "-"

Question 3

Given that A + B = 2C and C + D = 2A,

Accepted Answer

A + C = B + D

Answer

A + C = 2B

Answer

A + D = B + C

Answer

A + C = 2D

Question 4

Which collection of symbols should be used to fill in the provided equation?
5 0 3 5 = 20

Accepted Answer

-, +, x

Answer

x, +, x

Answer

"+", "-", x

Answer

x, x, x

Question 5

If × denotes addition, ÷ denotes subtraction, + denotes multiplication, and - denotes division, then 20 × 8 ÷ 8 - 4 + 2 =?

Accepted Answer

24

Answer

5

Answer

80

Answer

25

Question 6

In the following questions, what should be entered in lieu of the question mark (?)?
3 1/6 + 4 1/2 − 2 2/3 − 1 11/12 =?

Accepted Answer

3 1/12

Answer

1 5/12

Answer

1 7/12

Answer

3 7/12

Question 7

Assuming intercharges: 
+ and x signs, as well as 4 and 5.

Accepted Answer

5 x 4 + 20 = 104

Answer

5 x 4 + 20 = 85

Answer

5 x 4 + 20 = 40

Answer

5 x 4 + 20 = 95

Question 8

The answer to the equations 3(u + 3v) = 11 uv and 3(2u + v) = 7 uv is _____.

Accepted Answer

u = 1, v = 3/2

Answer

u = 1, v = 0

Answer

u = 0, v = 1

Answer

u = 0, v = 3/4

Question 9

12:30:: 14:?

Accepted Answer

35

Answer

42

Answer

28

Answer

36

Question 10

Given the definitions of Q, J, T, and K as "add to," "multiply by," "subtract from," and "divide by," what does 30 K 2 Q 3 J 6 T 5 =?

Accepted Answer

28

Answer

31

Answer

103

Answer

18