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Representing Decimal Numbers on the Number Line
We have already learnt to represent fractions on a number line. Now let us see the representation of decimal numbers on a number line. Consider the decimal number 0.8.
That is there are 8 tenths (8/10). We know that 0.8 is more than 0 and less than 1. Let us divide the unit length into ten equal parts and take 8 parts as shown below.
Draw a number line and divide the intervals into ten equal parts. Now 0.8 lies between 0 and 1.
Can we represent 1.4 on a number line? Let us see now. 1.4 has one and four tenths in it. So it lies between 1 and 2. It is marked on the number line as shown below.
1. Mark the following decimal numbers on the number line.
2. Identify any two decimal numbers between 2 and 3.
The decimal numbers between
2 and 3 are 2.4, 2.7.
3. Write any decimal number which is greater than 1 and less than 2.
The decimal number which is
greater than 1 and less than 2 is 1.5.
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