Foundation January 2020 Paper 1 Q20
20
(a) Write \(\;7.8 \times 10^{-4}\;\) as an ordinary number. (1)
(b) Work out \(\;\dfrac{5.6 \times 10^4 + 7 \times 10^3}{2.8 \times 10^{-3}}\)
Give your answer in standard form. (2)
Give your answer in standard form. (2)
| Scheme | Marks |
|---|---|
| 0.000 78 | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| 22 500 000 oe e.g. \(22.5 \times 10^6\) or \(2.25 \times 10^n \quad n \neq 7\) | M1 |
| \(2.25 \times 10^7\) | A1 |
| (2) | |
| (3 marks) |