Question

How much greater is 8.9 x 10^8 than 1.6 x 10^6

Answer 1

How much greater is
`8.9*10^8` than
`1.6*10^6`? Express your answer using either standard notation or scientific notation.

`8.9*10^8 - 1.6*10^6`

`890,000,000-1,600,000` Convert to standard notation

`888,400,000` Standard Notation

`8.884*10^8` Scientific Notation

Answer 2

`8.884` ×
`10^8`

or 888400000

Explanation:

1) Work out the numbers

The first thing you need to do is work out the numbers to find out the difference!

• 
  `8.9` ×
  `10^8` =
  `8.9` ×
  `100000000` =
  `890000000`
• 
  `1.6` ×
  `10^6` =
  `1.6` ×
  `1000000` =
  `1600000`

2) Find the differences between the numbers

890000000 - 1600000 = 888400000

3) Put your final answer in standard form

To put a number in standard form you must...

• Put a decimal point after the 1st significant figure
• Count how many numbers are after it
• Write it in standard form

To put it in the question we are given...

• 8.88400000
• There are 8 numbers after the 1st significant figure
• 
  `8.884` ×
  `10^8`

Hope this helps, have a great day!