Calculate -1.25 × 0.8

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

Step by step

Question: work out −1.25 × 0.8.

−1.25 × 0.8

125 × 8 = 1000

2 + 1 = 3 digits after the point → 1.000

Minus times plus is minus.

Forget the points: 125 times 8 is 1000.

Together, the numbers have 2 + 1 = 3 digits after the point.

So the answer has 3 too: 1.000, which is −1.

= −1

So the answer is −1.

Answer

= −1

Try this one yourself, then check:

Work out −2.5 × 0.8

Show the answer

−2