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Tiny Nines

Find the decimal equivalents of the fractions one ninth, one ninety ninth, one nine hundred and ninety ninth etc. Explain the pattern you get and generalise.

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Repetitiously

The number 2.525252525252.... can be written as a fraction. What is the sum of the denominator and numerator?

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Sept 03

What is the last digit of the number 1 / 5^903 ?

Fractions and Percentages Card Game

Age 11 to 16 Challenge Level:

A useful strategy for working out percentages of quantities is to work out 10% first, and then use fractions or multiples of that amount.