# Visual Estimation

Visual Estimation is finding a value that is **close enough** to the right answer.

- You are
**not**trying to get the**exact**right answer - What you want is something that is
**good enough**(usually in a hurry)

### Example: How many objects are here:

You could count them, but what if you don't need an exact answer, just one that is close enough? Can you guess well?

Answer: 48

As well as looking, you should also be thinking.

### Example: If the small box has an area of "1" what is the area of the big box?:

Try "measuring by eye" the width and height, then multiplying ... what do you come up with?

Answer: About 7×4 = 28

## Estimating Counts, Lengths and More

It is a **very useful skill** to be able to estimate how many things you can see, or how long something is or how big something is, and so on.

Examples:

- How much wrapping paper do you need to wrap a large box?
- How much bread do you need to make sandwiches for all your friends?
- How many people in the room?
- How thick should you make each slice of cake at a party?
- How much paint do you need to paint a wall, or table?

Being good at this takes **practice and experience**.

So we have made some Estimation Games to help you get started!

(Have fun!)