Consider the number line given below.
Let's find the decimal represented by the point r.
The distance between 0 and 1 is divided into 10 equal parts.
So, each part represents a length of one-tenth or 0.1.
Now, count the number of parts from 0 to r.
There are 8 parts.
This means that the point r is 8 parts to the right of 0 or 8 tenths after 0.
Now, 0 and 8 tenths equals 0.8.
So, the decimal represented by the point r is 0.8.
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The correct answer is
The smallest number is the one that comes first while counting.
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21 is the smallest number.