Page 79 - Mathematics_Std_4

Exercise 10

1. How many millilitres are in the following volumes?
(a) 9 litres (b) 12 litres (c) 3 litres (d) 5 litres

2. Convert the following volumes into litres.
FOR ONLINE READING ONLY
(a) 14,000 mL (b) 6,000 mL (c) 2,000 mL (d) 8,500 mL

3. A bucket has a volume of 20 litres. What is this volume in
millilitres?

4. A water tank is filled with 6 buckets of 20 litres each. How
many millilitres of water does the tank hold?

Addition of measurements of volume
Metric units of volume with the same measurements can be

added. Start by adding smaller units followed by larger units.

Example 1

L mL

3 600
+ 4 450

Solution Steps

L mL 1. Add millilitres:
=
+1 + 600 mL 450 mL 1050 mL. Convert
3 600
1050 mL to get 1 L and 50 mL.
+ 4 450 Write 50 in the mL column and take 1 litre

50 from the litre column

L mL 2. Add litres: 1 L + + 3 L = 4 L 8 L. Write 8
+1
3 600 in the column of L.

+ 4 450
8 50

Therefore, the answer is 8 L 50 mL.

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