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Year 7 Interactive Maths - Second Edition


Powers of 10

Look at this pattern:
The power of 10 matches the number of zeros in the basic numeral.

From this we can infer that:

10 to the power of 8 has 8 zeros when written as a basic numeral.


Example 21

Write 5  10 squared as a basic number.

Solution:

5  10 squared is 500


Example 22

Evaluate 8  10 cubed

Solution:

8  10 cubed is 8000


Example 23

Express 5000 as a number between 1 and 10 multiplied by a power of 10.

Solution:

5000 is 5  10 cubed


Key Term

power of ten


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