Foundation June 2022 Unit 2 Q5
5.
(a) Elaine writes down two square numbers.
She subtracts the smaller square number from the larger square number.
Her answer is 9.
Which two square numbers did Elaine write down? [2]
Elaine’s square numbers are …………… and ……………
(b) Dylan adds two odd numbers together and gets an answer of 37.
Could Dylan’s answer be correct?
Yes ☐ No ☐ Can’t tell ☐
Explain your reasoning. [1]
Reasoning:
| Scheme | Marks | Comments |
|---|---|---|
| 16 and 25 | B2 | Answer space takes precedence. Accept 42 and 52. B1 for writing
|
| Scheme | Marks | Comments |
|---|---|---|
| No, AND correct reason stated e.g.
| E1 | E0 if incorrect box is ticked, even if the correct reason is given. If none of the boxes are ticked, ‘no’ may be implied by their reason. Accept equivalent reasons. Accept the use of ‘make’ or ‘and’ instead of ‘add’. Allow ‘there are no two odd numbers which add to make 37’ or ‘the answer will always be even’. Exemplifying two odd numbers adding to an even number by itself is insufficient. |