4MA0 Higher January 2017 Paper 3R Q13
13
(a) Write \(7.9 \times 10^{-4}\) as an ordinary number. (1)
(b) Work out \(\;(6.5 \times 10^5) \times (3.1 \times 10^4)\)
Give your answer in standard form. (2)
Give your answer in standard form. (2)
| Scheme | Marks |
|---|---|
| 0.00079 | B1 |
| (1) |
Notes
B1: cao
| Scheme | Marks |
|---|---|
| M1 | |
| \(2.015 \times 10^{10}\) | A1 |
| (2) | |
| (3 marks) |
Notes
M1: for \(20.15 \times 10^9\) or 20 150 000 000
or \(2.015 \times 10^n\) where \(n \ne 10\)
A1: For \(2 \times 10^{10}\) or better