Titlebook: Work Out Numeracy; F. E. Penketh Textbook 1987Latest edition Macmillan Publishers Limited 1987 mathematics.numeracy.work

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Fractions,A fraction can be changed to another fraction and yet have exactly the same value; this is said to be changing one fraction to an equivalent fraction.

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Decimals,Decimal fractions are usually called decimals and are separated from the whole numbers by a dot called the decimal point.

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Measurement,You should try and remember the various weights, lengths and capacity in imperial and SI units. The following are the most common units in use.

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Ratio and Proportion,Ratio is a comparison of quantities; it can be written in a special way or as a fraction.

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Averages,An average in mathematics can mean any kind of representative number but in everyday language when we find the word ‘average’ it is usually referring to arithmetic mean. To find the average (that is, the arithmetic mean) we add all the quantities together (money, weights, runs, people, etc.) and then divide by the number of quantities.

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