Question

Thomas is playing with his trainset on the patio. He aligns6 tracks in a single line. Ifeach track measures 6.8inches, what is the totallength of the track?(Tutors please explain how you do the equation ex:division, please explain how you divide each number etc)

Answer 1

Given that:

- Thomas aligns 6 tracks in a single line.

- The length of each track is 6.8 inches.

Let be "x" the total length of the track (in inches).

Based on the data given in the exercise, you can set up that:

`x=(6.8)(6)`

Therefore, in order to find the total length, you need to multiply the length of each track by the number of tracks aligned. You can solve the multiplication as follows:

1. Set up that:

2. Multiply the 8 by 6. You know that:

`8\cdot6=48`

But you only need to write the second digit (8) below the line.

3. Multiply the 6 by 6 and add the digit 4 (of the value 48 obtained in the previous step) to the result. Write the number obtain below the line.

Then:

4. You can identify that there is a Decimal Number in the Multiplication (this is 6.8), and you can also identify that it has only one digit after the Decimal Point.

This indicates that you need to put only one digit behind the Decimal Point of the Product (the result of the Multiplication).

Then:

Hence, the answer is:

`40.8\text{ }inches`