Foundation November 2017 Paper 3 Q9
9 Nidah writes down two different prime numbers.
She adds together her two numbers.
Her answer is a square number less than 30
Find two prime numbers that Nidah could have written down. (2)
| Answer | Mark | Notes |
|---|---|---|
| 2, 7 or 3, 13 or 5, 11 or 2, 23 | M1 | for identifying two different prime numbers or two numbers which add up to give a square number or for a list of at least 3 prime numbers with no errors and a list of 3 square numbers with no errors. |
| A1 | for two correct prime numbers |