Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
 25 * 5 * 10 * 2 * 8 *60

Select the correct combination of mathematical signs to replace the * signs sequentially and balance the given equation.
 99 * 33 * 66 * 22 * 44 * 50

By interchanging the given two signs which of the following equation will be not correct?
 – and × 

In a certain language, if the signs + and ×, and the digits 3 and 8 are interchanged, then what is the value of the following expression?
 6 × 35 ÷ 5 + 8 – 9

Select the correct combination of mathematical signs to replace the * signs and to balance the given equation.
 67 * 88 * 8 * 14 * 3 * 19 * 17

Direction: Some equations have been solved on the basis of certain system. Find the correct answer for the unsolved equation on that basis.

2 × 4 × 6 = 4; 9 × 3 × 7 = 13; 4 × 7 × 6 = 3; 9 × 7 × 8 =?

Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
 25 * 2 * 220 * 11 * 43

Which two signs should be interchanged to make the given equation correct?
 48 ÷ 12 × 3 + 5 − 4 = 21