Question

subtract.

\\(-2.5 - -3.4 =\\)

Explanation:

Rewrite subtraction of a negative number as addition

$$ -2.5 - (-3.4) = -2.5 + 3.4 $$

Calculate the sum

$$ 3.4 - 2.5 = 0.9 $$

Answer:

Subtract.

\(-2.5 - -3.4 =\) <blank>0.9</blank>