Section 2.4: Mathematical Modelling

This code will determine a new number:

Start

Input Number

Divide by 5 

Add 6

Display Number

End

What number will be displayed if the input number is 20?

This code will determine a new number:

Start

Input number 

Subtract 2 

Multiply by 3 

Display number

End

What number will be displayed if the input number is 6?

This code will determine a new number:

Start 

Input number

Add 4 

Multiply by 2

Display number  

End

What number will be displayed if the input number is 3?

A robot is programmed to paint fence posts. There are 7 posts, and the robot paints 1 post every 2 seconds.
How long will it take to paint all the posts?

Lily models the number of pencils in boxes.
Each box holds 6 pencils. She has 4 boxes.
Which code can help her figure out the total?

Max is programming a robot to stack chairs. Each stack has 4 chairs, and he makes 5 stacks.
What code would model this?

Sophia creates a code to model how many steps it takes to walk through a hallway.
Her code says:

Repeat 10 times: Move forward 2 steps 

How many total steps?

Liam writes this code to count coins in boxes:

Repeat 3 times:    Count 5 coins

What real-life problem could this model?

Jayden programs a robot to clean 4 rows of 5 tiles.
Which code shows how many tiles it will clean?

A robot delivers books to 5 classrooms. It drops off 3 books in each room.
How many books will it deliver in total?

Emma is designing a garden. Each row has 4 flowers. She wants to model how many flowers she needs for 6 rows.
Which code best represents this situation?