PDF chapter test TRY NOW

**1**. Rohit said to his father, "The cost of petrol is \(₹78.30\) today. It is \(₹3.20\) more than yesterday's cost".

**2**. I want to reduce my weight, which is \(57.6\) \(kg\).

**3**. The price of \(5\)-litre oil is \(₹635.50\).

These are the sentences we use in daily life.

*Do you know about the numbers \(78.30\) and \(3.20\)?*

*Yes, these numbers are called decimal numbers.*

A decimal number consists of two parts, which is the whole number part and a decimal part.

Both of these parts are separated by a little dot or point (.) known as a decimal point.

The right side of the decimal point is known as the whole number part.

The left side of the decimal point is known as the decimal part.

**1.**\(230.76\)

\(230\) is the whole number part, and \(.76\) is the decimal part.

**2.**\(45.218\)

\(45\) is the whole number part, and \(.218\) is the decimal part.

**3.**\(5.13\)

\(5\) is the whole number part, and \(.13\) is the decimal part.

Important!

The decimal digits of a number should be read as separate digits.