Calculate -1.5 × -0.4

Step by step, with the reason for every step · Negative fractions and decimals · Foundations

Step by step

Question: work out −1.5 × (−0.4).

−1.5 × (−0.4)

15 × 4 = 60

1 + 1 = 2 digits after the point → 0.60

Minus times minus is plus.

Forget the points: 15 times 4 is 60.

Together, the numbers have 1 + 1 = 2 digits after the point.

So the answer has 2 too: 0.60, which is 0.6.

= 0.6

So the answer is 0.6.

Answer

= 0.6

Try this one yourself, then check:

Work out −1.7 × (−0.6)

Show the answer

1.02