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 ×

[expand title=”View Answer”] b) – and ÷ [/expand]

**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 +

[expand title=”View Answer”] c) ÷ and x [/expand]

**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 +

[expand title=”View Answer”] a) + and x [/expand]

**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 +

[expand title=”View Answer”] c) + and – [/expand]

**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 –

[expand title=”View Answer”] d) ÷ and – [/expand]

**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 ×

[expand title=”View Answer”] b) – and + [/expand]

**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 ×

[expand title=”View Answer”] d) + and × [/expand]

**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

[expand title=”View Answer”] b) 11 [/expand]

**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 ÷

[expand title=”View Answer”] d) + and ÷ [/expand]

**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 ×

[expand title=”View Answer”] c) × and ÷ [/expand]

**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 ÷

[expand title=”View Answer”] d) + and ÷ [/expand]

**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

[expand title=”View Answer”] a) 47 [/expand]

**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

[expand title=”View Answer”] a) A – B ÷ C × D + E [/expand]

**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

[expand title=”View Answer”] d) 9 [/expand]

**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

[expand title=”View Answer”] c) 231 [/expand]

**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 ÷

[expand title=”View Answer”] c) + and ÷ [/expand]

**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 ÷

[expand title=”View Answer”] b) ÷ and × [/expand]

**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 –

[expand title=”View Answer”]b) ÷ and x [/expand]

**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

[expand title=”View Answer”] c) 0 [/expand]

**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

[expand title=”View Answer”] c) 16 and 8 [/expand]

**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

[expand title=”View Answer”] c) 27 [/expand]

**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

[expand title=”View Answer”] d) 154 [/expand]

**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 ÷

[expand title=”View Answer”] d) – and ÷ [/expand]

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

[expand title=”View Answer”] b) 65 [/expand]

**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 –

[expand title=”View Answer”] a) × and ÷ [/expand]

**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 +

[expand title=”View Answer”] c) ÷ and – [/expand]

**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

[expand title=”View Answer”] a) 64 [/expand]

**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 +

[expand title=”View Answer”] d) ÷ and + [/expand]

**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

[expand title=”View Answer”] a) 6 [/expand]

**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 ×

[expand title=”View Answer”] c) × and – [/expand]

**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

[expand title=”View Answer”] c) 20 [/expand]

**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

[expand title=”View Answer”] b) 15 [/expand]

**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 +

[expand title=”View Answer”] b) ÷ and × [/expand]

**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

[expand title=”View Answer”] c) 10 [/expand]

**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 –

[expand title=”View Answer”] d) ÷ and – [/expand]

**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

[expand title=”View Answer”] a) 11 [/expand]

**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 –

[expand title=”View Answer”] c) + and x [/expand]

**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

[expand title=”View Answer”] d) 8 [/expand]

**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

[expand title=”View Answer”] c) 29 [/expand]

**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

[expand title=”View Answer”] c) 29 [/expand]

**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

[expand title=”View Answer”] d) 17 + 7 ÷ 2 – 21 × 3 = 10 [/expand]

**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

[expand title=”View Answer”] b) 2 [/expand]

**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

[expand title=”View Answer”] c) 9 × 5 + 2 × 2 = 25 [/expand]

**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 ×

[expand title=”View Answer”] b) – and × [/expand]

**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 –

[expand title=”View Answer”] b) + and ÷ [/expand]

**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 –

[expand title=”View Answer”] d) × and – [/expand]

**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 ×

[expand title=”View Answer”] a) + and – [/expand]

**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 –

[expand title=”View Answer”] c) ÷ and + [/expand]

**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 ÷

[expand title=”View Answer”] c) + and – [/expand]

**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

[expand title=”View Answer”] b) 12, 96 [/expand]

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