What is the primary goal of China's ocean drilling ship

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

6 $ 42 $ 14 $ 6 $ 40 = -16

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

28 * 174 * 6 * 4 * 126 = 18

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

56 * 112 * 4 * 15 * 5 * 9

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

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

24 and 15

If 'A' means ' X ', 'B' means '÷', 'C' means '+' and 'D' means ' - ', then what will come in the place of '?' in the given expression?

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

56 * 492 * 6 * 7 * 123 = 507

After interchanging the given two signs, what will be the value of the given equation?

Sign: + and ÷

Equation: 54 - 22 X 198 + 9 ÷ 420

Select the correct combination of mathematical signs that can sequentially replace the “@” sign and balance the following equation.