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Skill 4 of 13
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Powers & exponents

In a game of ‘Double or Quits’ you just won 4 times in a row. The $200\,€$ you started out with are doubled 4 times:

$$200\,€\cdot 2 \cdot 2 \cdot 2 \cdot 2 =3200\,€$$

If you continue winning, this becomes long to write. Let’s write it shorter, for example as:

$$200\,€\cdot 2^4 =3200\,€$$

Instead of ‘2 times 2 times 2 times 2’ you can now say ‘2 four times’ – or what about ‘2 to the fourth’. Some people would say ‘2 raised to the power of four’, because this tiny raised number has quite a lot of “power”.

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