Page 68 - Mathematics_Std_4

Measurements of mass
The mass of an object is measured in metric units which include
tonnes (t), kilograms (kg), hectograms (hg), dekagrams (dag),

grams (g), decigrams (dg), centigrams (cg) and milligrams (mg).
FOR ONLINE READING ONLY
The following pictures show the example of a weighing balance.

Relationships of metric units of mass

The following table shows the relationships of metric units of
mass.

milligram centigram decigram gram dekagram hectogram kilogram
(mg) (cg) (dg) (g) (dag) (hg) (kg)

1
10 1

100 10 1
1,000 100 10 1

10,000 1,000 100 10 1
100,000 10,000 1,000 100 10 1

1,000,000 100,000 10,000 1,000 100 10 1

1 tonne (t) = 1000 kilograms (kg)

From the table, the relationship between measurements can

be established. For example, the following relationships can be
easily established:

(a) 1 gram = 1000 milligrams (b) 1 centigram = 10 milligrams
(c) 1 gram = 100 centigrams (d) 1 kilogram = 1000 grams

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MATHEMATICS STD 4 PB 2024.indd 61 06/11/2024 17:17:11