# lucky 7 blocks quiz answers
Show a number on the micro:bit.
This is the answer key for the [lucky 7 quiz](/microbit/lessons/lucky-7/quiz).
## 1. Describe what `show number` does?
Answers may vary. This will show a number on the LED screen, one digit at a time (scrolling from left to right).
## 2. Draw every LED that is ON after running this code
![](/static/mb/blocks/lessons/lucky-7-3.png)
![](/static/mb/lessons/lucky-7-0.png)
## 3. Draw every LED that is ON after running this code
![](/static/mb/blocks/lessons/lucky-7-4.png)
![](/static/mb/lessons/lucky-7-1.png)
## 4. Write the code that will be used to display the number 3 on the micro:bit.
![](/static/mb/lessons/lucky-7-2.png)
![](/static/mb/blocks/lessons/lucky-7-5.png)