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2.6.2 Try some yourself

1 Read the following expression out aloud or write it out in full in words:

  • (a) 3 × 4 + 3 × 5 = 3 (4 + 5).

Answer<
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2.6.1 Arithmetical symbols

You will have already met the symbols for the basic arithmetical operations, which are +, −, × and ÷, but you may not have met some of the alternative ways of writing × and ÷.

To recap, the main symbols for arithmetical operations are:

There are other alternati
Author(s): The Open University

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2.5.1 Try some yourself

1 How would you add the following words to the list:

 decimal, fraction, positive, negative.

For each one, give the mathematical meaning and an example of its use.

Author(s): The Open University

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Designed products surround us all and range from bus tickets to buildings. This unit focuses firmly on usability and the increasingly important phenomenon of people-centred design. It aims to inform consumers of design (i.e., all of us) about this crucial characteristic of design. The unit is derived from the Open University course T211 on Design and Designing, but as well as stimulating interest in areas of concern for producers of design it might also provide an introduction to engineering, ma
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