In which year did Hans Christian Oersted discover that a

If '@' means '÷', '#' means ' X ', '$' means '+' and '%' means '-' then what would be the value of the expression given below?

Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation:

76 *(5*8*4)*9*75

Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.

60 * 48 * 36 * 6 * 15 * 53

If “+” means “minus”, “×” means “divided by”, “÷” means “plus”, and “-“ means then “multiplied by”

If '+' means '-', 'X' means '+', '-' means '÷', and '÷' means 'X', then what is the value of the following expression? 120 - 10 + 60 X 5 ÷ 3 X 15

If ‘÷’ means ‘-’, ‘-’ mean ‘+’, ‘+’ means ‘×’ and ‘×’ means ‘÷’, compute the value of the expression:

Select the correct combination of mathematical signs that can sequentially replace ‘*’ sign and balance the equation given below.

Select the correct combination of the mathematical signs to replace the ‘@’ symbols in the below equation and thereby balance it: