Standard Form − Very Large Numbers
Very large numbers can be written in standard form
| Number | Standard Form | |
| Ten | 10 | 101 |
| One hundred | 100 | 102 |
| One thousand | 1,000 | 103 |
| Ten thousand | 10,000 | 104 |
| One hundred thousand | 100,000 | 105 |
| One million | 1,000,000 | 106 |
| Ten million | 10,000,000 | 107 |
| One hundred million | 100,000,000 | 108 |
| One billion | 1,000,000,000 | 109 |
| Ten billion | 10,000,000,000 | 1010 |
Notice − in each of the above examples the value in the power e.g. the 3 in 103 matches the number of zeroes 1,000 in the number column
- Example 1. what is 400,000 in standard form?
- Example 2. what is 4,100,000 in standard form?
- Example 3. what is 5,040,000 in standard form?
- Example 4. what is 20,000,000 in standard form?
400,000 = 4.0 × 105
4,100,000 = 4.1 × 106
5,040,000 = 5.04 × 106
20,000,000 = 2.0 × 107
Important − in Standard Form the number we multiply by 10 is always between 1 and 10.
to: 
