Mathematics. Capacity
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Class: Basic 3
Subject: Mathematics
Topic: Capacity (REVISION)
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Content:
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The amount of liquid a container holds is called its CAPACITY.
Liquids are things like water,milk,kerosene, oil,petrol,juice, water, etc.
The standard measure for liquid is the litre(l) and millilitre (ml).
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Note.—————–
10 millilitre(ml) = 1 centiltre (cl).
10centilitre (cl) = 1 decilitre (dl)
10 decilitre (dl) = 1 litre(l)
1000 litres= (L) = 1 kilolitre (kl)
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Note that:
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Millilitre = ml
Centilitre = cl
Decilitre = dl
Litre = L
Kilolitre = kl
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Examples:
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Change to litres and millilitres.
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(i) 1200ml = 1000ml + 200ml
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Since 1000ml is the same as 1L
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Therefore; 1L+ 200ml = 1L 200ml
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(ii) 1800ml = 1000ml +800ml
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We know that 1000 is equal to 1L
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Therefore;Â 1L + 800ml = 1L 800ml
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Class activity 1:
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Change to litres and millilitres
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(1) 1500ml
(2) 750ml
(3) 4400ml
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Examples:
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Change to millilitres only
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(i) 1LÂ 250ml = 1L+250ml
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Since 1L is the same as 1000ml
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Therefore;Â 1000ml + 250ml = 1250ml.
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(ii) 3L 150ml = 3L + 150ml
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3L = 3 × 1000 = 3000ml
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Therefore;Â 3000ml + 150ml= 3150ml.
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Class activity 2:
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Change to millilitres only
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(4) 8L 330ml
(5) 7L 200ml
(6) 5L 950ml