Higher January 2023 Paper 1R Q7
7
(a) Write \(\;9.32 \times 10^{-5}\;\) as an ordinary number. (1)
(b) Work out \(\;3 \times 10^{5} - 6 \times 10^{4}\)
Give your answer in standard form. (2)
Give your answer in standard form. (2)
(c) Work out \(\;(3 \times 10^{55}) \times (6 \times 10^{65})\)
Give your answer in standard form. (2)
Give your answer in standard form. (2)
| Scheme | Marks |
|---|---|
| 0.000 0932 | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| \(2.4 \times 10^{5}\) | B2 |
| (2) |
Notes
B2: If not B2, then B1 for 240 000 or \(24 \times 10^{4}\) oe or \(2.4 \times 10^{a}\), \(a \ne 5\)
| Scheme | Marks |
|---|---|
| \(1.8 \times 10^{121}\) | B2 |
| (2) | |
| (5 marks) |
Notes
B2: If not B2, then B1 for \(18 \times 10^{120}\) or \(1.8 \times 10^{b}\), \(b \ne 121\)