Higher June 2024 Paper 3 Q2
2
(a)
(i) Write \(5.3 \times 10^4\) as an ordinary number. (1)
(ii) Write \(7.4 \times 10^{-5}\) as an ordinary number. (1)
(b) Calculate the value of \(9.7 \times 10^6 + 2.45 \times 10^7\)
Give your answer in standard form. (2)
Give your answer in standard form. (2)
| Answer | Mark | Mark scheme |
|---|---|---|
| (i) 53 000 | B1 | cao |
| (ii) 0.000 074 | B1 | cao |
| Answer | Mark | Mark scheme |
|---|---|---|
| \(3.42 \times 10^7\) | M1 | for \(9\,700\,000 + 24\,500\,000\ (= 34\,200\,000)\) or \(3.42 \times 10^n\ (n \neq 7)\) oe or \(3.4 \times 10^7\) or correct answer in incorrect form eg \(34.2 \times 10^6\) or both in a form ready for addition, eg \(9.7 \times 10^6 + 24.5 \times 10^6\) |
| A1 | cao |