Writing ordinary numbers II

This task is about writing standard form numbers as ordinary numbers.
The following facts have numbers written in standard form.
Write each of these numbers as a decimal number.

Question 1Change answer

a)  A truck driver does a return trip from Wellington to Auckland every week.
    In a year he travels approximately 6.7 × 104 km
=  km.

Question 1Change answer

b)  The distance from Earth to the Moon is approximately 3.84 × 105 km.
=  km.

Question 1Change answer

c)  The number of seconds in a century is approximately 3.155 × 109 seconds.
=  seconds.

Question 1Change answer

d)  The world 100 metre running record was broken by 2 × 10-2 seconds.
=  seconds.

Question 1Change answer

e)  The thickness of a page in a mathematics textbook is roughly 7.6 × 10-5 m.
=  m.