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

1 Answer
CountryGirl
Mar 2, 2018

#-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#

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