Question

by how much is 7486 cm greater than 8596 mm. give your answers in metres

Answer 1

$1 \: cm = 0.01 \: m \\ so \: \: 7486 \: cm = 74.86 \: m \\ \\ 1 \: mm = 0.001 \: m \\ so \: \: 8596 \: mm = 8.596 \: m \\ \\ required \: \: answer \\ = 74.86 - 8.596 = 66.264 \: m$

Answer 2

Heya!

Since the answer is written to be in metres, both the quantities need to be converted to metres.

That is, 7486 cm = 74.86 m [1 cm = 0.01]
Then, 8596 mm = 8.596 m [1mm = 0.001 m]

Now subtracting, 74.86 - 8.596 = 66.264 m (required answer)

Hope it helps!