Which two signs and two numbers should be interchanged in the following equation to make it correct?
 150 × 15 + 14 – 9 ÷ 2 =6

Which of the following interchange of numbers and mathematical signs would make the given equation correct?
 30 ÷ 6 × 4 + 15−35 = 25

If ‘+’ means ‘×’, ‘-’ means ‘÷’, ‘×’ means ‘+’ and ‘÷’ means ‘-’ then what is the value of a given equation?
225 ÷ 5 + 96 – 3 × 31 

In the following question, correct the equation by interchanging two signs.
9 x 3 + 8 ÷ 4 – 7 = 28

By interchanging the given two numbers (not digits), which of the following equations will be correct?

44 and 19

I. 203 + 44 – 27 × 19 ÷ 11 = 114

II. 9 × 572 ÷ 19 – 44 + 4 = 120

In the following question, by using which mathematical operator will the expression become correct?
18 ?6 ? 9 ? 27

Which of the following interchanges in signs and numbers will make the given equation correct?

8 x 6 + 4 = 52

If + means −, − means ×, × means ÷, and ÷ means +, what will be the value of the following expression?
 3 ÷ 6 + 3 – 4 × 4 = ?