Decimal Number Lines Part 1

Find the difference between the decimals represented by the points d and h on the given number line.

A. 0.3

B. 1.5

C. 0.6

D. 1.6

That's Correct!

It's Wrong!

Consider the given number line.

Observe that:

The distance between 1 and 2 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 1 to d.

There are 3 parts.

This means that the point d is 3 parts to the right of 1 or 3 tenths after 1.

Now, 1 and 3 tenths equals 1.3.

So, the decimal represented by the point d is 1.3.

Similarly, the decimal represented by the point h is 1.9.

Now, let's find the difference between the decimals represented by the points d and h.

Notice that point h is 6 parts ahead of point d.

Also, we know each part represents a length of one-tenth or 0.1.

So, 6 parts is 6 tenths or 0.6.

The difference between the decimals represented by the points d and h is 0.6.