Mathematical Operation Questions and Answer :The arithmetic operators carry out the addition, subtraction, multiplication, division, exponentiation, and modulus operations. The four fundamental arithmetic operations in mathematics for all real numbers are addition, subtraction, multiplication, and division.

## Mathematical Operation Questions and Answer

**1. Which two signs should be interchanged to correct the given equation?**

5 + 3 × 8 – 12 ÷ 4 = 3

a) + and –

b) – and ÷

c) + and ÷

d) + and ×

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**2. Which two signs should be interchanged to correct the given equation?**

5 + 6 ÷ 3 – 12 × 2 = 17

a) + and x

b) + and ÷

c) ÷ and x

d) – and +

View Answer

**3. Which two signs should be interchanged to correct the given equation?**

10 + 10 ÷ 10 – 10 × 10 = 10

a) + and x

b) + and ÷

c) ÷ and x

d) – and +

View Answer

**4. Which two signs should be interchanged to correct the given equation?**

12 ÷ 2 – 6 × 3 + 8 = 16

a) × and –

b) + and ×

c) + and –

d) ÷ and +

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**5. Which two signs should be interchanged to correct the given equation?**

9 + 5 ÷ 4 × 3 – 6 = 12

a) × and –

b) + and ×

c) + and –

d) ÷ and –

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**6. Which two signs should be interchanged to correct the given equation?**

16 – 8 ÷ 4 + 5 × 2 = 8

a) ÷ and ×

b) – and +

c) × and –

d) + and ×

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**7. Which two signs should be interchanged to correct the given equation?**

2 × 3 + 6 – 12 ÷ 4 = 17

a) ÷ and ×

b) – and +

c) × and –

d) + and ×

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**8. In a certain code language, ‘+’ represents ‘×’, ‘-‘ represents ‘+’, ‘×’ represents ‘÷’ and ‘÷’ represents ‘-‘. What is the answer to the following question?**

8 – 2 + 81 × 27 ÷ 3 = ?

a) 55

b) 11

c) 26

d) 17

View Answer

**9. Which two signs should be interchanged to make the given equation correct?**

225 + 5 × 3 ÷ 5 – 7 = 133

a) × and ÷

b) – and +

c) × and –

d) + and ÷

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**10. Find out the two signs to be interchanged to make the following equation correct**.

27 + 24 × 1 – 7 ÷ 3 = 30

a) – and ÷

b) + and –

c) × and ÷

d) – and ×

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**11. Interchanging which two signs will make the following equation correct?****15 + 3 × 9 – 4 ÷ 16 = 57**

a) – and +

Page 4 of 21

b) – and ÷

c) – and ×

d) + and ÷

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**12. If „A‟ means „+‟, „B‟ means „×‟, „C‟ means „†‟ and „D‟ means „-„, then 16 C 7 B 49 C 28 A 63 D 21 A 1 = ?**

a) 47

b) 49

c) 63

d) 45

View Answer

**13. If A represents 30, B represents 42, C represents 7, D represents 6 and E represents 25, then which mathematical equation will be equal to 19?**

a) A – B ÷ C × D + E

b) A × B ÷ C + D × E

c) A ÷ B × C + D + E

d) A + B ÷ C × D – E

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**14. If P means „†‟ Q means „+‟, R means „-„ and S means „×‟, then the value of 10 R 192 P 48 S 48 P 96 Q 1 is ?**

a) 12

b) 19

c) 11

d) 9

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**15. If the mathematical operator, „+‟ means „×‟, „†‟ means „-„, „-„ means „+‟, and „×‟ means „†‟, then the value of 45 + 95 × 19 – 55 ÷ 49 is**

a) 113

b) 153

c) 231

d) 276

View Answer

**16. Which of the following signs need to be interchanged to make the given equation correct?****12 ÷ 5 × 16 + 8 – 4 = 18**

a) + and –

b) ÷ and ×

c) + and ÷

d) – and ÷

View Answer

**17. Which of the following signs need to be interchanged to make the given equation correct?****3 ÷ 25 × 5 + 9 – 7 = 17**

a) + and –

b) ÷ and ×

c) + and ÷

d) – and ÷

View Answer

**18. In the following question, correct the equation by interchanging the two signs.****14 + 4 ÷ 5 – 18 × 2 = 25**

a) + and x

b) ÷ and x

c) – and ÷

d) + and –

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**19. If + means -, – means ×, × means ÷ and ÷ means +, then the value of the given equation ****12 + 3 – 5 ÷ 69 × 23 is**a) 12

b) 15

c) 0

d) 13

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**20. Which of the following two numbers need to be interchanged to make the given equation correct?****8 × 4 – 16 + 18 ÷ 6 = 59**

a) 8 and 4

b) 18 and 16

c) 16 and 8

d) 8 and 6

View Answer

**21. If + means -, – means ×, × means ÷ and ÷ means +, then then the value of the given equation 10 – 15 × 5 + 6 ÷ 3 is**

a) 9

b) 3

c) 27

d) 18

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**22. If + means -, – means ×, × means ÷ and ÷ means +, then what will be value of following expression?****90 × 10 – 15 ÷ 45 + 26 = ?**

a) 123

b) 145

c) 167

d) 154

View Answer

**23. In the following question, correct the equation by interchanging the two signs.****45 – 9 ÷ 3 + 5 × 6 = 32**

a) + and ×

b) – and +

c) + and ÷

d) – and ÷

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24. If + means -, – means ×, × means ÷ and ÷ means +, then what will be value of following expression?

45 × 5 – 3 ÷ 60 + 22 = ?

a) 56

b) 65

c) 76

d) 67

View Answer

**25. Which of the following interchange of signs would make the equation correct?****200 + 15 ÷ 6 × 9 – 29 = 181**

a) × and ÷

b) + and ÷

c) + and –

d) × and –

View Answer

**26. The following equation is incorrect. Which two signs should be interchanged to correct the equation?****10 ÷ 18 + 25 x 20 – 5 = 92**

a) + and x

b) + and ÷

c) ÷ and –

d) – and +

View Answer

**27. If 7 x 6 = 84, 1 x 4 = 8 and 2 x 3 = 12, then find the value of 8 x 4 = ?**

a) 64

b) 36

c) 12

d) 40

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**28. Which two signs should be interchanged to correct the given equation?****3 × 6 + 2 – 4 ÷ 8 = 13**

a) × and –

b) + and ×

c) + and –

d) ÷ and +

View Answer

**29. If „+‟ represents „×‟, „-„ represents „+‟, „× „ represents „†‟ and „†‟ represents „-„, then find the value of the following expression. ****6 ÷ 8 × 2 – 4**

a) 6

b) 24

c) 18

d) 12

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**30. Which two mathematical symbols need to be interchanged to correct the below equation?**

9 + 3 × 2 – 8 ÷ 4 = 8

a) ÷ and ×

b) ÷ and +

c) × and –

d) + and ×

View Answer

**31. In a certain code language, + represents x , – represents + , X represents +, + represents -. Find out the answer to the following expression in that code language.****8 – 4x 2 + 6 = ?**

a) 10

b) 12

c) 20

d) 18

View Answer

**32. In a certain code language, „+‟ represents „×‟, „-„ represents „+‟, „×‟ represents „†‟ and „†‟ represents „- „. Find out the answer to the following question.****12 + 3 × 4 – 6 = ?**

a) 5

b) 15

c) 10

d) 4

View Answer

**33. Which two signs should be interchanged to make the given equation correct?****6-2 × 4 ÷ 10 + 5 = 6**

a) × and –

b) ÷ and ×

c) + and –

d) ÷ and +

View Answer

**34. In a certain code language, „+‟ represents „x‟, „- „represents „+‟ , „x„ represents „+‟ and „+‟ represents „-„. Find out the answer to the following mathematical expression in that language.****2 – 6 x 3 + 4 =?**

a) 2

b) 12

c) 10

d) 8

View Answer

**35. Which two signs should be interchanged to make the below equation mathematically correct?****12 – 3 + 8 × 2 ÷ 4 = 16**

a) ÷ and ×

b) × and –

c) + and –

d) ÷ and –

View Answer

**36. In a certain code language, „+‟ represents „×‟, „+‟ represents „+‟, „-‟ represents „+‟ and „×‟ represents „- ‟. Find out the answer to the following question considering that language as base.****9 × 3 ÷ 4 + 10 – 8 = ?**

a) 11

b) 13

c) 30

d) 12

View Answer

**37. Which two signs should be interchanged to correct the given equation?****15 ÷ 3 + 2×10 – 6 = 14**

a) ÷ and –

b) ÷ and +

c) + and x

d) + and –

View Answer

**38. In a certain code language, „+‟ represents „x‟, „-„ represents „+‟, „x‟ represents „+‟ and „+‟ represents „- „, calculate the answer of the following equation.****8 + 3 × 4 – 2 = ?**

a) 12

b) 6

c) 10

d) 8

View Answer

**39. If we interchange “+” with “–” and “†” with “×”, then what is the value of the below expression?****39 × 3 + 10 – 13 ÷ 2**

a) 3

b) 17

c) 29

d) 31

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**40. In a certain code language, ‘x’ represents ‘+’, ‘÷’ represents ‘x’, ‘-‘ represents ‘÷’ and ‘+’ represents ‘-‘. Find out the answer to the following question.****18 – 2 + 20 x 10 ÷ 4 = ?**

a) 11

b) 2

c) 29

d) 35

View Answer

**41. If we interchange “+” with “–” and “†” with “×”, then which of the below equations is correct?**

a) 15 × 3 – 17 + 6 ÷ 2 = 11

b) 2 ÷ 7 + 8 – 21 × 3 = 14

c) 12 – 16 × 2 + 5 ÷ 4 = 1

d) 17 + 7 ÷ 2 – 21 × 3 = 10

View Answer

**42. If ‘A’ means ‘+’, ‘B’ means ‘-‘, ‘C’ means ‘x’ and ‘D’ means ‘÷’, then find the value of **

**(1 D 1 C 1) A(2 C 2 D 2) A (3 D 3 C 3) B (4 C 4 D 4)**

a) 3

b) 2

c) 6

d) 10

View Answer

**43. If ‘+’ and ‘x’ are interchanged and also the numbers 5 and 9 change places, which of the****following options is correct?**

a) 2 × 9 + 3 × 5 = 21

b) 5 × 9 + 3 × 3 = 0

c) 9 × 5 + 2 × 2 = 25

d) 3 + 9 × 3 + 5 = 32

View Answer

**44. Which two signs should be interchanges in the following equation to make it correct?****10 + 16 – 60 x 20 ÷ 4 = 965**

a) + and –

b) – and ×

c) ÷ and +

d) + and ×

View Answer

**45. Which two signs should be interchanged in the following equation to make it correct?****405 + 27 x 40 – 308 ÷ 22 = 314**

a) – and +

b) + and ÷

c) × and +

d) ÷ and –

View Answer

**46. Which two signs should be interchanged in the following equation to make it correct?****211 x 14 + 627 ÷ 33 – 17 = 520**

a) + and –

b) + and ÷

c) × and +

d) × and –

View Answer

**47. Which two signs should be interchanged in the following equation to make it correct?****434 + 7 × 44 – 720 ÷ 15 = 174**

a) + and –

b) ÷ and –

c) × and +

d) – and ×

View Answer

**48. Which two signs should be interchanged in the following equation to make it correct?****40 + 10 × 6 ÷ 6 – 2 = 28**

a) + and –

b) × and ÷

c) ÷ and +

d) × and –

View Answer

**49. Which two signs need to be interchanged to make the following equation correct?****7 – 9 × 3 ÷ 9 + 5 = 5**

a) – and ×

b) ÷ and ×

c) + and –

d) + and ÷

View Answer

**50. Which two numbers need to be interchanged to make the given equation correct?****12 ÷ 3 – 6 + 4 × 96 = 74**

a) 6, 4

b) 12, 96

c) 3, 6

d) 6, 96

View Answer

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