In this lesson, you will be introduced to the hexadecimal number system and learn how to convert between hexadecimal and decimal numbers. You will also learn why hexadecimal is used.

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

## Question 6

Q1.In binary shifting, which direction do you shift in order to multiply?

1/6

Q2.In binary shifting, which direction do you shift in order to divide?

2/6

Q3.TRUE or FALSE: When performing a binary shift for division, any remainders are discarded.

3/6

Q4.Perform the following BINARY calculation: 111 + 110 (enter the binary answer only)

4/6

Q5.Perform the BINARY calculation: 11 x 10 (enter the binary answer only)

5/6

Q6.Perform the BINARY calculation: 110 / 10 (enter the binary answer only)

6/6

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

## Question 6

Q1.In binary shifting, which direction do you shift in order to multiply?

1/6

Q2.In binary shifting, which direction do you shift in order to divide?

2/6

Q3.TRUE or FALSE: When performing a binary shift for division, any remainders are discarded.

3/6

Q4.Perform the following BINARY calculation: 111 + 110 (enter the binary answer only)

4/6

Q5.Perform the BINARY calculation: 11 x 10 (enter the binary answer only)

5/6

Q6.Perform the BINARY calculation: 110 / 10 (enter the binary answer only)

6/6

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

Quiz:

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

## Question 3

Q1.Convert this HEXADECIMAL number to DECIMAL: FF

1/3

Q2.Convert this DECIMAL number to HEXADECIMAL: 128

2/3

Q3.Convert this HEXADECIMAL number to BINARY: A3

3/3

Quiz:

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

## Question 3

Q1.Convert this HEXADECIMAL number to DECIMAL: FF

1/3

Q2.Convert this DECIMAL number to HEXADECIMAL: 128

2/3

Q3.Convert this HEXADECIMAL number to BINARY: A3

3/3

### Time to move!

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For 5 mins...

Move around:
Climb stairs

On the spot:
Chair yoga

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