
Standard form is a way of writing very large or very small numbers using powers of 10.
Step 1: Make the first number between 1 and 10
In standard form, the first number must be:
greater than or equal to 1, but less than 10
Start with 6,000.
Divide by 10 until the number is between 1 and 10.
6,000 ÷ 10 = 600
600 is still greater than 10, so divide by 10 again.
600 ÷ 10 = 60
60 is still greater than 10, so divide by 10 again.
60 ÷ 10 = 6
Now stop.
6 is between 1 and 10.
Step 2: Count how many times you divided by 10
We divided by 10 three times.
This gives us the power:
10³
Step 3: Write the number in standard form
Put the two parts together:
6 × 10³
So:
6,000 = 6 × 10³
Common mistake
A number can have the same value as 6,000 without actually being written in standard form.
For example:
60 × 10² = 6,000
but this is not standard form because the first number is 60.
The first number must always be:
at least 1 but less than 10.
So the correct standard form is:
6 × 10³
Quick Check
You can check your answer by working backwards.
10³ = 1000
So:
6 × 1000 = 6000
Therefore:
6000 = 6 × 10³
Further practice
Write each number in standard form:
1. 4,000
2. 25,000
3. 730,000
4 × 10³
2.5 × 10⁴
7.3 × 10⁵
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