1MA0 Foundation November 2013 Paper 1 Q8
8
(a) Work out \(15 \div 5 + 7\) (1)
(b) Work out \(2 + 7 \times 2\) (1)
(c) Work out \(-5 + -6\) (1)
(d) Work out \(14 - -3\) (1)
(e) Add brackets ( ) to make this statement correct.
\(12 - 2 \times 3 + 1 = 4\)
(1)(f) Why does \(\dfrac{1}{4} = \dfrac{2}{8}\)? (1)
| Answer | Mark | Notes |
|---|---|---|
| 10 | 1 | B1 cao |
| Answer | Mark | Notes |
|---|---|---|
| 16 | 1 | B1 cao |
| Answer | Mark | Notes |
|---|---|---|
| \(-11\) | 1 | B1 cao |
| Answer | Mark | Notes |
|---|---|---|
| 17 | 1 | B1 cao |
| Answer | Mark | Notes |
|---|---|---|
| \(12 - 2 \times (3 + 1)\) | 1 | B1 cao |
| Answer | Mark | Notes |
|---|---|---|
| Explanation/ reason | 1 | B1 Correct explanation of equivalence eg: Indication that the same operation needs to be applied to both numerator and denominator. Correct shading on diagrams to demonstrate 1 quarter and 2 eighths Conversion of both fractions to a common format 2 is \(\frac{1}{4}\) of 8 oe |