Language, notation and formulas
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# 2.3.1 Try some yourself

## Activity 3

In the following two pieces of mathematical writing, remove or replace any inappropriate equals signs, and add link words and punctuation to help somebody else understand the mathematics.

- (a)

- (b) (3.2)2 = 10.24 = (8.5)2 = 72.25 = 10.24 + 72.25 = 82.49

## Answer

The versions given below are not the only possibilities. You may have used other words, but check that you have written in whole sentences with full stops at the end.

- (a)

- (b)

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