Calculate -3 × 5 × -2

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

Step by step

Question: work out −3 × 5 × (−2).

−3 × 5 × (−2)

Times and divide: we go from left to right.

same kind: left → right

− × + = −

Minus times plus is minus.

3 times 5 is 15.

So we get −15.

= −15 × (−2)

− × − = +

Minus times minus is plus.

15 times 2 is 30.

So we get 30.

= 30

So the answer is 30.

Answer

= 30

Try this one yourself, then check:

Work out −4 × 5 × (−3)

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