Question

85-4÷9×10 has a value of 90 where do i put the parentheses?

Answer 1

You have to put the parentheses like this:

`(85-4) / 9 * 10`

In fact, you have to perform the operation inside parentheses first, and then proceed in order:

`81 / 9 * 10 = 9 * 10 = 90`