Calculate -15 + (-5)

Step by step, with the reason for every step · Integers · Foundations

Step by step

Question: work out −15 + (−5).

−15 + (−5)

Adding a negative is the same as taking away.

+ (−) = −

So −15 + (−5) becomes −15 − 5.

= −15 − 5

Start at −15.

Go down 5.

We land on −20.

= −20

So the answer is −20.

Answer

= −20

Try this one yourself, then check:

Work out −13 + (−3)

Show the answer

−16