Foundation June 2017 Unit 1 Q18
18.
(a) Estimate the value of \(\dfrac{41{\cdot}3 \times 29{\cdot}6}{198{\cdot}7}\).
You must show all your working. [2]
You must show all your working. [2]
(b) Given that \(54 \times 84{\cdot}2 = 4546{\cdot}8\), write down the exact value of each of the following.
(i) \(540 \times 842 \;=\) …………… [1]
(ii) \(\dfrac{4546{\cdot}8}{5{\cdot}4} \;=\) …………… [1]
(iii) \(\dfrac{454{\cdot}68}{84{\cdot}2} \;=\) …………… [1]
| Scheme | Marks | Comments |
|---|---|---|
| \(\dfrac{40 \times 30}{200}\) OR \(\dfrac{41 \times 30}{200}\) | M1 | |
| = 6 OR 6·15 or 6 | A1 | Unsupported answer (M0) is also A0. |
| Scheme | Marks | Comments |
|---|---|---|
| (i) 454 680 | B1 | |
| (ii) 842 | B1 | |
| (iii) 5·4 | B1 |