Foundation November 2023 Paper 1 Q22
22 Work out the value of \(\quad (8^2 \times 8) \div (8^9 \div 8^5)\)
Give your answer as a decimal. [3 marks]
| Answer | Mark | Comments |
|---|---|---|
| \((8^2 \times 8 =)\ 8^3\) or \((8^9 \div 8^5 =)\ 8^4\) or 512 or 4096 or \(8^2 \times 8 \div 8^9 \times 8^5\) | M1 | |
| \((8^3\) or \(512) \div (8^4\) or \(4096)\) or \(8^{(2 + 1 - 9 + 5)}\) or \(8^8 \times 8^{-9}\) or \(8^{-1}\) or \(\dfrac{1}{8}\) | M1dep | oe in the form \(8^n \div 8^{(n + 1)}\) oe where index sums to −1 oe in the form \(8^n \times 8^{(-n-1)}\) oe fraction |
| (0).125 | A1 |
Additional guidance
| (0).125 and either \(8^{-1}\) or \(\dfrac{1}{8}\) on the answer line | M1M1A1 |
| (0).125 in working and \(8^{-1}\) on the answer line | M1M1A0 |
| If a student attempts numerical and index working award the higher mark |