Coding and Decoding Questions

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

12 + 8 - 25 ÷ 10 x 18 = 14

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

26 - 2 x 30 ÷ 6 + 16 = 20

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

90 ÷ 10 + 5 - 6 x 4 = 28

Which of the following interchange of signs would make the equation correct?

5 + 3 x 8 ­ 12 ÷ 4 = 3

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

4 - 10 ÷ 5 x 4 + 12 = 16

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

16 x 4 - 10 + 2 ÷ 12 = 18

If "A" means "minus", "B" means "divided by", "C" means "plus" and "D" means "multiplied by", then

54 B 6 A 4 C 2 D 5 = ?

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

21 + 16 x 35 - 70 ÷ 20 = 9