Interactive Maths Worksheets Developing & Refreshing Your Maths Skills Standard Form

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Interactive Maths Worksheets
Developing & Refreshing Your Maths Skills
Standard Form
Index Notation
To understand standard form it is, first of all, essential to
understand the index notation.
2
3
= 3 x 3
3
3
= 3 x 3 x 3
So using index notation is a shorthand way of writing large numbers
and allows for easier calculations.
If a number has a negative index it will calculate as a number less
than 1:
-2
e.g. 3
is the same as 1
2
3
-1
e.g. 10
is the same as 1
1
10
-1
0.1 = 1 = 10
10
-2
0.01 =
1
= 10
100
-3
0.001 =
1
= 10
1000
This table shows how large and small numbers can be represented
by using powers of 10.
0.0001 0.001 0.01 0.1
1
10 100 1000 10,000 100,000
-4
-3
-2
-1
0
1
2
3
4
5
10
10
10
10
10
10
10
10
10
10

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