Question 1 Report
A swimming club's head coach compares the volume of water needed to fill two training pools before a gala, shown in the table below.
| Pool | Volume (litres) |
|---|---|
| Main pool | \(4.8 \times 10^{5}\) |
| Toddler pool | \(9.6 \times 10^{3}\) |
Work out the total volume of water needed to fill both pools, giving your answer in standard form. (4)
Adding two quantities given in standard form is most reliable by first converting each to an ordinary number (or matching their powers of \(10\)), adding, and then converting the total back into standard form.
\(4.8\times10^5=480\,000\) litres and \(9.6\times10^3=9\,600\) litres [2 marks]
\(480\,000+9\,600=489\,600\) litres [1 mark]
\(=4.896\times10^5\) litres [1 mark]
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