# #(8xx10^-7)(2xx10^5)#?

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scientific notation

scientific notation

##### 2 Answers

#### Answer:

The answer of this calculation is

#### Explanation:

When multiplying numbers in scientific notation, first you multiply the whole numbers.

In this case, they are

Then for the exponents: when multiplying, you add the exponents. So that would be

We have

But in scientific notation, there must be only ONE digit before the decimal point.

In decimal notation the answer is

#### Answer:

#### Explanation:

Multiplying in scientific notation can be compared to multiplying in algebra:

In scientific notation you might have:

However in scientific notation, there must be one digit before the decimal point:

In this example we have:

However in scientific notation, there must be one digit before the decimal point:

It is usual to give an answer in the same format as the question.

In decimal format this answer would be