Question

(a) show how to do the problem. click here to learn more about these chips.
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(b) write the answer.
$-4 - (-5) = \square$

Explanation:

Step1: Rewrite subtraction as addition

$-4 - (-5) = -4 + 5$

Step2: Calculate the sum

$-4 + 5 = 1$

Answer:

$1$