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Q4. THE FLIGHT ...
You're
skimming the clouds and the food trolley is on the way. Fantastic -
the only black cloud on the horizon is your leg space - there's just not
enough.
You
check it with your handy pocket-size measuring tape. You find
that you have only 40 cm of leg space.
How
much is this in metres?
A4. 0.4 m or 0.4
metres
Picture it: 100cm =
1m. You only have 40cm - not enough to make 1 whole metre. So,
your answer will be less than 1 - a decimal.
Estimate it: 40cm is just under half of
100 cm. Answer is roughly 1/2 or 0.5
Calculate it: 100 cm = 1 m 40 cm =
40 / 100 = 0.4 cm
(Close to estimate)
Q5.
PLANE TO TRAIN
You're in
Paris! Only one short train ride and you'll arrive at your
hotel.
You board
the train at 11:20 am. The train is slow
and takes one hour and twenty five minutes.
At what time
do you arrive at Le Royale?
A5.
12:45 pm.
Picture it: Add
on the 25 minutes first. Then the 1
hour.
Estimate it: 11:20 am + 1hour
25 minutes is roughly equal to ... 11:30 am
+ 1 hour 30 minutes = 1:00 pm.
Calculate it: 11:20 + 25
minutes = 11:45
am 11:45
+ 1
hours = 12:45
pm.
(EASY TO MISS: After 12 noon, am CHANGES TO
pm).
Q6. TIME TO
RELAX
After all the travelling, you decide to have a long
hot bath. You find that the sumptuous bath is 6 feet long.
About how many metres is that?
A6. 2 metres or 2
m.
Picture it: 1 foot: your long school ruler is 30 cm and roughy 12 inches
or 1 foot 1 metre: the height of a tall man or
half the height of your classroom
door So,
a 6-foot bath is rough 6 school rulers, one tall man or 1 classroom
door!
Estimate it: 3 feet = 1 yard AND
... 1 yard is roughly 1 metre
Convert it: 6 feet = 2 x 1 metre
= 2 metres
Q7. THE EIFFEL
TOWER
Number
one on your list of 'Things to See' is the Eiffel
Tower.
The
scale on your map is 1 cm to 5 km. On the map, the Tower is 6
cm from your hotel.
What
is the actual distance?
A7. 30 centimetres or 30
cm
Picture
it: 1 centimetre on the map stands
for every 5 km. So 6 cm is 6 lots of 5
km.
Calculate
it: 6 x 5 km = 30
km
Q8. THE QUEUE
There's a massive queue for the Eiffel Tower!
You
have lots of time on your hands so you start counting: The
ratio of men to women in the queue is 5:4.
There
are 12 women. How many men are
there?
A8. 15
men
Picture it:
The ratio of men to women is 5 to 4. There are 5 men for
every 4 women. So you could divide the queue into groups of
9, each with 5 men and 4 women.
So, how many groups do you need for 12 women? - 3
groups with 4 women in each group. So, how many men in 3 groups?
Calculate it: 3 x 5 men = 15
men
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