Foundation January 2023 Paper 1R Q22
22
(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 \(2.4 \times 10^a\;\; a \neq 5\)
| Scheme | Marks |
|---|---|
| \(1.8 \times 10^{121}\) | B2 |
| (2) | |
| (5 marks) |
Notes
B2: If not B2, then B1 for \(18 \times 10^{120}\) or \(1.8 \times 10^b\;\; b \neq 121\)