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
1
Change answer
a) A truck driver does a return trip from Wellington to Auckland every week.
In a year he travels approximately 6.7 × 10
4
km
a) A truck driver does a return trip from Wellington to Auckland every week.
In a year he travels approximately 6.7 × 10
4
km
=
km.
Question
1
Change answer
b) The distance from Earth to the Moon is approximately 3.84 × 10
5
km.
b) The distance from Earth to the Moon is approximately 3.84 × 10
5
km.
=
km.
Question
1
Change answer
c) The number of seconds in a century is approximately 3.155 × 10
9
seconds.
c) The number of seconds in a century is approximately 3.155 × 10
9
seconds.
=
seconds.
Question
1
Change answer
d) The world 100 metre running record was broken by 2 × 10
-2
seconds.
d) The world 100 metre running record was broken by 2 × 10
-2
seconds.
=
seconds.
Question
1
Change answer
e) The thickness of a page in a mathematics textbook is roughly 7.6 × 10
-5
m.
e) The thickness of a page in a mathematics textbook is roughly 7.6 × 10
-5
m.
=
m.
Published on
Assessment Resource Banks
(
https://arbs.nzcer.org.nz
)