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
Year 9 - Answers for Revision exercise 1.3
These answers are given merely to help with revision. In order to get full marks all working out must be shown.
| 4 | a) | | 25 |
| b) | | 81 |
| c) | | 32 |
| d) | | 125 |
| e) | | 144 |
| f) | | 1600 |
| g) | | 864 |
| h) | | 2744 |
| i) | | 325 |
| j) | | 8010 |
| k) | | 720 |
| l) | | 1100000 |
| | | |
| 5 | a) | | 27 |
| b) | | not possible |
| c) | | 54 |
| d) | | 25 |
| e) | | 71 |
| f) | | 34 |
| g) | | 33 |
| h) | | 26 |
| i) | | 56 |
| | | |
| 6 | a) | | 1 ⁄ 2 |
| b) | | 1 ⁄ 10 |
| c) | | 3 |
| d) | |
|
| e) | | 1 ⁄ 8 |
| f) | | 1 ⁄ 36 |
| g) | | 125 |
| h) | | 36 |
| i) | | 1 ⁄ 16 |
| j) | |
|
| k) | |
|
| l) | | 1 |
| | | |
| 7 | a) | i) | 2.65 × 102 |
| | ii) | 1.8 × 10−1 |
| | iii) | 7.65 × 104 |
| | iv) | 7 × 10−6 |
| | v) | 4.5 × 105 |
| | vi) | 9.2 × 10−2 |
| b) | i) | 0.0345 |
| | ii) | 0.0501 |
| | iii) | 0.73 |
| | iv) | 0.000637 |
| | v) | 140000 |
| | vi) | 283000 |
| | | |
| 9 | a) | | 41.3 |
| b) | | 239000 |
| c) | | 2.08 |
| d) | | 132 |
| e) | | 29.2 |
| f) | | 61.7 |
| g) | | 3.11 |
| h) | | 40.2 |
| i) | | 0.113 |
| | | |
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