1MA0 Foundation June 2015 Paper 2 Q18
18 Here is a list of numbers.
1 2 4 5 8 9 12 15 16
(a) From the list, write down a prime number. (1)
(b) From the list, write down three square numbers that add to make 21 (2)
| Working | Answer | Mark | Notes |
|---|---|---|---|
| 2,5 | 2 or 5 | 1 | B1 cao |
| Working | Answer | Mark | Notes |
|---|---|---|---|
| 1, 4, 9, 16 1 + 4 + 16 | 1, 4, 16 | 2 | M1 for identifying at least 2 different square numbers from the list A1 cao |