Standard Form − Very Small Numbers
Very small numbers can be written in standard form
| Decimal | Fraction | Standard Form | |
| One tenth | 0.1 | 1/10 or 1/101 | 10−1 |
| One hundredth | 0.01 | 1/100 or 1/102 | 10−2 |
| One thousandth | 0.001 | 1/1000 or 1/103 | 10−3 |
| Ten thousandth | 0.0001 | 1/10000 or 1/104 | 10−4 |
| One hundred thousandth | 0.00001 | 1/100000 or 1/105 | 10−5 |
| One millionth | 0.000001 | 1/1000000 or 1/106 | 10−6 |
- Example 1. what is 0.0004 in standard form?
- Example 2. what is 0.00041 in standard form?
- Example 3. what is 0.000504 in standard form?
- Example 4. what is 0.000007 in standard form?
0.0004 = 4.0 × 10−4
0.00041 = 4.1 × 10−4
0.000504 = 5.04 × 10−4
0.000007 = 7.0 × 10−6
Important − in Standard Form the number we multiply by 10 is always between 1 and 10.
to: 
