Mammoth Memory

Indices and calculators

How to work out Indices (powers/exponents) on a calculator.

First always try simple numbers you know first

What is `2^2` ?

And we know it is `2\times2=4`

Now on a calculator

Always try this easy one first so that you know you are pressing the correct buttons.


Enter `2`

Press `x^y` button

Enter `2`

Press `=`

Answer: should be `4`.

Now you can go onto more difficult powers.


Example 1

Put in `4^10` on a calculator

(Remember this is `4xx4xx4` ……. Ten times)


Enter `4`

Press `x^y` button

Enter `10`

Press  `=`

Answer: should be `4^10 = 1,048,576`

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