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# What is the Standard Form of 28?

## How is Standard Form Defined?

Standard form, or standard index form, is a way of writing a number in a more simplified way. Instead of writing out the full number, you write it as a number between 1 and 10 multiplied by a power of 10. This makes it easier to understand what the number is, and is particularly useful when dealing with very large or very small numbers.

## What is the Standard Form of 28?

The standard form of 28 is 2.8 × 10¹. This means that 28 is equal to 2.8 multiplied by 10 to the power of 1. To put it another way, 28 is 2.8 times 10, or 28 is equal to 28.

## How to Work Out the Standard Form of a Number

If you want to work out the standard form of a number, it’s relatively simple. All you need to do is move the decimal point until only one digit is to the left of it. Then, count how many times you moved the decimal point and add this as a power of 10. For example, take the number 5,000. Move the decimal point four places to the left, so it becomes 0.5. The standard form of 5,000 is 5 × 10³.

## Why is Standard Form Useful?

Standard form is particularly useful when dealing with very large or very small numbers. It’s easier to compare two numbers written in standard form than it is to compare two numbers written as full numbers. For example, it is easier to compare 1.5 × 10¹ and 2.8 × 10¹ than it is to compare 15 and 28.

### Conclusion

The standard form of 28 is 2.8 × 10¹. Standard form is useful for simplifying and comparing large and small numbers. To work out the standard form of a number, move the decimal point until there is only one digit to the left of it and then add the number of places it was moved as a power of 10. 