Foundation June 2022 Paper 2 Q12
12 Here is a number machine.
(a) Work out the output when the input is 28 (1)
Here is a different number machine.
The number machine is not complete.
When the input is 8, the output is 154
(b) Complete the number machine. (2)
| Answer | Mark | Mark scheme |
|---|---|---|
| 9 | B1 | cao |
| Answer | Mark | Mark scheme |
|---|---|---|
| 6 | M1 | starts to find input using inverse operations eg \(154 \div 11\ (= 14)\) or indicates \(\div 11\) and \(-\ 8\) or derivation of equation eg \((8 + n) \times 11 = 154\) or starting to solve for unknown eg \(154 - 8 \times 11\ (= 66)\) |
| A1 | cao |
Additional guidance
\(\div 11\) and \(-8\) could be seen in a flow diagram
Evidence could be provided by algebraic statement, numerical statements or by diagram