Use of Decimal in Measuring the Length

We will learn the use of decimal in measuring the length.

As we already know that,

100 centimetres = 1 metre or 100 cm = 1 m

So, 1 cm is one hundredths of a metre.

or, 1 cm = \(\frac{1}{100}\) m = 0.01 m

Similarly, 40 cm = 0.40 m      (40 centimetres is forty hundredths of a metre)

             25 cm = 0.25 m      (25 centimetres is twenty five hundredths of a metre)

Metres and centimetres can be expressed together as decimals.

For example,

8 m 40 cm = 8.40 m

19 m 1 cm = 19.01 cm

24 m 5 cm = 24.05 cm

25 m 58 cm = 25.58 m

51 m 11 cm = 51.11 cm

98 m 36 cm = 98.36 cm

4th Grade Math Activities

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