Links to other Year 9 Revision exercises - Ex 1.1 | Ex 1.2 | Ex 1.3 | Ex 1.4 | Ex 1.5 | Ex 1.7 | Ex 2.1 | Ex 2.2 | Ex 2.3 | Ex 2.4 | Ex 3.1 | Ex 3.2 | Ex 3.3 | Ex 3.4 | Ex 3.5 | Ex 4.1 | Ex 4.2 | Ex 4.3 | Ex 4.4 | Ex 4.5
These answers are given merely to help with revision. In order to get full marks all working out must be shown.
| 2 | a) | 85%, 0.85 | |
| b) | 3 ⁄ 8, 0.375 | ||
| c) | 5 ⁄ 8, 62.5% | ||
| d) | 23 ⁄ 400, 0.0575 | ||
| e) | 23 ⁄ 20, 115% | ||
| f) | 475%, 4.75 | ||
| 4 | a) | i) | 18 kg |
| ii) | 19.8 g | ||
| iii) | 12.6 m | ||
| b) | i) | £696 | |
| ii) | £144 | ||
| iii) | 234 cm² | ||
| iv) | £28.60 | ||
| c) | i) | 17.0 km | |
| ii) | 0.599 m | ||
| iii) | 33.1 mm | ||
| d) | i) | 20% | |
| ii) | 13 ⁄ 40 | ||
| iii) | 0.56% | ||
| iv) | 3 ⁄ 16 | ||