When \(\quad x = 5 \quad y = 13\) and when \(\quad x = 10 \quad y = 28\)
Complete the number machine. [2 marks]
Mark scheme (a)
Answer
Mark
Comments
40 in correct position in number machine
B1
Mark scheme (b)
Answer
Mark
Comments
\(+\,11\) in correct position in number machine
B1
oe operation to reach 18 eg \(-\,-11\) or \(\times\,\dfrac{18}{7}\)
Mark scheme (c)
Answer
Mark
Comments
3 and 2 in correct positions in number machine
B2
B1 correct operations for input 5, output 13 or correct operations for input 10, output 28
Additional guidance
B1 may be awarded for correct work, with no or incorrect answer, even if this is seen amongst multiple attempts
Examples of correct operations for input 5, output 13 include \(\times\,2.6\) and \(-\,0\) or \(\times\,4\) and \(-\,7\) or \(\times\,5\) and \(-\,12\)
B1
Examples of correct operations for input 10, output 28 include \(\times\,2.8\) and \(-\,0\) or \(\times\,4\) and \(-\,12\) or \(\times\,5\) and \(-\,22\)
