Number
Statistics and Probability
Algebra
Geometry and Measures
Mock Exams

1.2 Powers and Roots

Simplify the following using index notation.

1.

5×5×5×5=
= 5 4

2.

9×9×9=
= 9 3

3.

7×7×7×7×7×7×7×7×7=
= 7 9

Write the following indices as an integer.

4.
2 4 =
=2×2×2×2 =16
6.
10 5 =
=10×10×10×10×10 =100,000
5.
5 3 =
=5×5×5 =125
7.
2 6 =
=2×2×2×2×2×2 =64

General rules for indices/powers

How many times has the base number been multiplied by itself? This will become the power.

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