If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

## Class 1

### Course: Class 1>Unit 1

Lesson 4: Making small numbers

# Making 5

Learn how to add numbers to make the number five. Created by Sal Khan.

## Want to join the conversation?

• At can't you just do 5 - 3 to find the unknown number?
• You could, but this video is about trying to make five without using subtraction (I think).
• How do you know thats addition ? Right now it looks like Subtraction to me.
• Addition is when you are adding one number to another through this sign: +. Subtraction is when you are taking away a particular amount from a bigger number through this sign: -.
• Could this be a good start for "solving for x" learning?
(1 vote)
• This is a very basic form of equations in one variable, so i think it is the starting point for 'solving for x' or solving equations for variables type of learning.