Foundation November 2017 Paper 3 Q10
10
(a) Write \(7 \times 7 \times 7 \times 7\) as a power of 7. [1]
(b) Complete this working to write \(4^3\) as a power of 2.
| \(4^3 = 4 \times 4\) …………… | |
| so | \(4^3 = 2 \times 2 \times 2 \times\) …………… |
| so | \(4^3 =\) …………… |
[2]
(c) Write these numbers in order, starting with the largest.\[8.1 \times 10^1 \qquad 1.02 \times 10^3 \qquad 9.83 \times 10^{-2} \qquad 3 \times 10^2\]
[1]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(7^4\) | 1 | Condone \(7^4 = 2401\) on answer line | |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(\times\ 4\) \(2 \times 2 \times 2\) [=] \(2^6\) | 2 | B1 for one line correct | |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(1.02 \times 10^3\), \(3 \times 10^2\), \(8.1 \times 10^{[1]}\), \(9.83 \times 10^{-2}\) | 1 | Accept 1020, 300, 81, [0].0983 | Condone error in writing 0.0983 if order correct. |