Convert A Number To Scientific Notation

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How to Convert A Number To Scientific Notation?

Very large or very small numbers are usually written in scientific notation :

A × 10ⁿ where 1 ≤ |A| < 10 and n is an integer.

Example:

2 350 000 = 2.35 × 10⁶

0.000 875 4 = 8.754 × 10^–4

The following figures show how to convert decimals to scientific notation. Scroll down the page for more examples and solutions.

To convert a number into scientific notation:

Method 1

Rewrite the number as a product of a number A such that 1 ≤ |A| < 10 and a power of 10.

Example:

64 000 = 6.4 × 10 000
= 6.4 × 10⁴

Method 2

Step 1 : Shift the decimal point of the number A to the left or to the right until 1 ≤ |A| < 10

Step 2 : Count the number of places that the decimal point has moved. The count would be the index n. If the decimal point was moved to the left then n is positive. If the decimal point was moved to the right then n is negative.

Example:

Example:

Write each of the following numbers in scientific notation:

a) 734 000         b) 0.00685

Solution:

a) 734 000 = 7.34 × 10 000 = 7.34 × 10⁵

or

b) 0.00685 = 6.85 × = 6.85 × 10^-3

or

The following video shows more examples of converting numbers to scientific notation Learn how to convert in and out of scientific notation in these step by step examples

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