Measurement
MILLILITRES AND LITRES
There are 1000 millilitres in 1 litre
Millilitres (ml) are used to measure small amounts of liquid such as
medicine or quantities in a recipe.
Litres (l) are used to measure larger quantities of liquid such as petrol
or cartons of milk.
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Try to change these litres into millilitres.
1 litre
=
1000ml
2l
=
2 x 1000ml
=
2000 ml
4l
=
4 x 1000ml
=
______ ml
7l
=
______ ml
10 l
=
______ ml
19 l
=
______ ml
25 l
=
______ ml
½l
=
______ ml
6½ l
=
______ ml
9½ l
=
______ ml
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Measurement
We can also convert decimal litres into ml:
1.5 litres
=
1.5
x
1000
=
1500ml
2.75 litres
=
2.75
x
1000
=
2750ml
7.325 litres
=
7.325 x
1000
=
7325ml
0.25 litres
=
0.25
x
1000
=
250ml
0.7 litres
=
0.7
x
1000
=
700ml
Can you see what is happening?

When we multiply a decimal by 1000 the decimal point moves up 3
times.

Each whole litre converts to a thousand millilitres. The decimal
parts of a litre are also shown as ml.
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Measurement
A.
Now try these:
1)
A bottle of cola contains 2 litres.
What is this in millilitres?
What will 6 bottles of cola contain?
2)
Niamh drinks 2.5 litres of water in a day.
What is this in millilitres?
How much water will she drink in 7 days?
3)
Maya fills a petrol can with 4.725 litres of petrol.
What is this in millilitres?
4)
Colin adds 1 litre of water to 0.275 litres of cordial.
What is this in litres?
What is this in millilitres?
5)
Kirsty squeezes oranges to get 1.5 litres of fresh juice.
What is this in millilitres?
If she splits the juice into 5 cups what will each one contain?
6)
Alfie uses 0.35 litres of milk to make custard.
What is this in millilitres?
How much will he have left from a litre bottle?
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Measurement
1l = 1000 ml
Now we can change from millilitres to litres.
1000ml
=
1
litre
3000ml
=
_____ litres
6000ml
=
_____ litres
9000ml
=
_____ litres
13000ml
=
_____ litres
20000ml
=
_____ litres
32000ml
=
_____ litres
Sometimes there will be millilitres 'left over' which do not make up a
whole litre.
millilitres left over - written as ml
1575 ml
=
or
1 litre 575 ml
as a part (decimal) of a litre
or
1.575 litres
1000 ml = 1 litre
3750 ml
=
3 litres 750 ml
or
3.75 litres
9200ml
=
9 litres 200 ml
or
9.2 litres
125ml
=
0 litres 125ml
or
0.125 litres
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Measurement
B.
1)
Martin buys a 1500ml bottle of fizzy apple drink.
What is this in litres?
2)
Shianthi uses 2750ml of stock in a soup recipe.
How much is this in litres?
3)
Ciara uses 500ml of turps to wash her paint brushes.
What is left, in litres from a 5 litre bottle?
4)
Yusef buys 2 litres of milk. He drinks 225 ml, uses 300 ml on
cereal and 150ml in hot drinks.
What is left in ml?
What is left in litres?
5)
Eleanor makes up baby milk formula using 250ml of water.
What is this in litres?
How many bottles of baby milk can she make with 3 litres of
water?
6)
Rita drinks 4 glasses of lager. Each one contains 280ml.
How much lager, in litres, does she drink?
C.
Metric Capacity
1)
A packet of juice contains 200ml. This is ______ litres.
2)
Which contains more, a bottle holding 1.2 litres or a carton
holding 1250 millilitres? What is the difference, in mls?
3)
What is the total capacity of 350mls of home made wine
mixture and 6.5 litres of water?
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Measurement
4)
How much would you pay for one litre of petrol if 100 litres
cost £65?
5)
One bottle of wine holds 750ml. what is the capacity of 5
bottles a) in mls b) in litre?
6)
If a fruit drink dilutes in a ratio of one part juice to five
parts water, how much water will you need for 350mls of
juice?
How much liquid will you have altogether
(a) in mls
(b) in litres?
7)
How many 0.4 litre measures can you take from a bottle
holding 2 litres?
Check your answers, then discuss with your tutor what you need
to work on next.
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Measurement
Answers
Millilitres and Litres

Litres
2l
4l
7l
10 l
19 l
25 l
½l
6½ l
9½ l
A
1)
millilitres
2000ml
4000ml
7000ml
10000ml
19000ml
25000ml
500ml
6500ml
9500ml
=
=
=
=
=
=
=
=
=
2l
12 l
=
=
2) 2500ml
2.5 x
7
17.5
2000ml
12000ml
=
17500ml
3)
4725 ml
4)
1.275 litres
1275 ml
5)
1500 ml
300 ml each cup
6) 350 ml
650 ml left
1000 ml
3000 ml
6000 ml
9000 ml
13000 ml
20000 ml
32000 ml
=
=
=
=
=
=
=
1 litre
3 litres
6 litres
9 litres
13 litres
20 litres
32 litres
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Measurement
B
1)
1.5 litres
2)
2.75 litres
3)
4.5 litres
4)
225
300
150
675
1325
1.325
+
ml used
ml left
l
left
5)
0.25 litres
12 bottles altogether
6)
280 x
4
1120 ml
3
C
= 1.12 litres
1) 0.2 litres
2) 1250 ml is more
50ml difference
3) 6.85 litres
4) 65p
5)
6)
7)
750 x
5
3750 ml
350 x
5
1750 ml
= 3.75 l
= 1.75 l water
so 2100 ml or 2.1 litres of liquid altogether
0.4 litres =
400ml
5 measures can be taken from 2 litres
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