Question

How do you evaluate `-0.2\times 22.4-28.5`?

Answer 1

`-32.98`

Explanation:

`-0.2 xx 22.4 - 28.5`
When you look at the equation, it is a little confusing. But if you take it step by step, it's fairly simple

By order of operations , we know that we have to multiply `-0.2 xx 22.4` together before we subtract anything. To make it easier, I'm going to put in parentheses.
`(-0.2 xx 22.4) - 28.5`
`(-4.48) - 28.5`

This simplified part looks a little confusing. How do you subtract from a negative number? Well, if I add a little "+" mark, it becomes a bit easier.
`-4.48 + -28.5`

This is exactly like adding now, all we have to do is keep the negative sign in the answer since they are both negative numbers.
`-4.48 + -28.5 = -32.98`