Foundation June 2019 Paper 2 Q18
18. Harman has written some calculations he needs to work out for his homework.
Write down the calculation needed to work out each of the following using the fewest number of key presses. [4]
Give your answer to each question.
(a) \(13 + 13 + 13 + 13 + 13 + 13 - 17 \times 17 \times 17\)
(b) \(232 + 34\%\) of \(232\)
(c) \(4530 - 18\%\) of \(4530\)
| Scheme | Marks | Comments |
|---|---|---|
| \(13 \times 6 - 17^3\) or \(26 \times 3 - 17^3\) or \(39 \times 2 - 17^3\) | B1 | |
| \(1.34 \times 232\) | B1 | Do not accept \(134\% \times 232\) |
| \(0.82 \times 4530\) | B1 | |
| \(-4835\) and \(310.88\) and \(3714.6\) | B1 | CAO. Independent mark Misreads: e.g. \(5\times13 - 17^3 = -4848\) is B0, but FT as misread for possible final B1 |
| (4) |