Question

How do you write the subtraction problem `0.45-(-1.3)` as an addition problem?

Answer 1

`0.45 - (-1.3) = 0.45 + (+13)`

Explanation:

"Taking away a negative number is the same as adding a positive"

`0.45 - (-1.3) = 0.45 + (+13)`

Subtracting can also be described as "adding the inverse" which gives the same result as shown above.

`0.45 + 1.3 = 1.75`