1. Which two signs should be interchanged in the following equation to make it correct, 868 + 14 × 55 - 1064 ÷ 5 6 = 117 ?

+ and ÷

× and -

+ and -

÷ and ×

Answer: + and -

Explanation:


2. Which two numbers should be interchanged in the following equation to make it correct, 618 + 37 × 12 – 703 ÷ 14 = 767 ?

14 and 37

618 and 14

703 and 12

12 and 37

Answer: 14 and 37

Explanation:


3. Which two signs should be interchanged in the following equation to make it correct 5 × 15 ÷ 7 - 20 + 4 = 77 ?

( ÷ and +)

(+ and -)

(+ and ×)

(- and ×)

Answer: ( ÷ and +)

Explanation:


4. Which two signs should be interchanged in the following equation to make it correct, 615 - 377 ÷ 29 × 15 + 308 = 502 ?

÷ and ×

+ and ÷

+ and -

× and +

Answer: + and -

Explanation:


5. Which of the following sequence of signs will correctly solve the given equation by replacing the question marks, 1105 ? 65 ? 835 ? 25 ? 5 = 727 ?

× ,-, +, ÷

÷ ,+,-, ×

+,-, × , ÷

+, ÷ ,-, ×

Answer: ÷ ,+,-, ×

Explanation:


6. Which two numbers should be interchanged in the following equation to make it correct, 731 ÷ 13 + 450 – 25 × 43 = 142 ?

13 and 25

450 and 25

13 and 43

731 and 450

Answer: 13 and 43

Explanation:


7. Which two signs and two numbers should be interchanged in the following equation to make it correct, 18 + 25 - 10 × 10 ÷ 5 = 203 ?

+ and - , 18 and 25

× and - , 18 and 25

× and ÷ , 25 and 5

+ and ÷ , 18 and 5

Answer: × and - , 18 and 25

Explanation:


8. Which two signs and numbers should be interchanged in the following equation to make it correct 10 + 8 - 200 × 15 ÷ 5 = 407 ?

+ and -, 15 and 10

× and ÷, 8 and 5

× and -, 5 and 15

+ and ÷, 200 and 10

Answer: + and -, 15 and 10

Explanation:


9. Which two signs should be interchanged in the following equation make it correct 35 + 7 - 5 × 2 ÷ 25 = 20 ?

× and ÷

+ and -

+ and ÷

× and -

Answer: + and ÷

Explanation:


10. Which two signs should be interchanged in the following equation to make it correct, 5 + 8 - 30 × 10 ÷ 2 = 240 ?

× and ÷

+ and ÷

+ and -

× and -

Answer: × and -

Explanation: