1. 1
   The temperatures (in degrees Celsius) recorded in four towns at midnight were: Deltaville: $-6$, Northport: $3.5$, Sunridge: $-2.25$, Eastfield: $4$.

   (a)

   Which town recorded the lowest temperature?

   [1 mark]

   • ADeltaville
   • BNorthport
   • CSunridge
   • DEastfield

   (b)

   Work out Northport's temperature minus Deltaville's temperature.

   [1 mark]

   • A$2.5$
   • B$-2.5$
   • C$9.5$
   • D$-9.5$

   (c)

   Eastfield's overnight temperature change is modelled by the expression $3 + 4 \times (2 - 5)$. Using the correct order of operations, work out the value of this expression.

   [1 mark]

   • A$-21$
   • B$21$
   • C$9$
   • D$-9$

   Total for question 1: 3 marks

2. 2
   A bakery uses $\frac{3}{4}$ kg of flour for one batch of bread and $2\frac{3}{8}$ kg of flour for one batch of cakes. Each day the bakery makes 5 batches of bread and 2 batches of cakes.

   (a)

   Calculate the total mass of flour, in kg, used for one day's production of bread and cakes. Give your answer as a mixed number in its simplest form.

   [2 marks]

   (b)

   The bakery manager claims that if the number of cake batches is doubled, the total mass of flour used that day will also double. Explain why the manager is wrong, using your calculation from part (a).

   [2 marks]

   Total for question 2: 4 marks

3. 3
   A school canteen offers meals made from one main course chosen from 4 options and one drink chosen from 3 options.

   (a)

   Show that there are 12 different possible meals that could be chosen.

   [3 marks]

   (b)

   One day, 250 students each choose a meal, and each meal costs £4.65. Calculate the total amount of money collected from all 250 students.

   [3 marks]

   Total for question 3: 6 marks

4. 4
   A warehouse stock check shows crates weighing (in kg): $12.6$, $-3.4$ (a returned crate recorded as a negative adjustment), $8.75$, and $15$.

   (a)

   Work out the total weight, in kg, of all four crates listed above.

   [4 marks]

   (b)

   Each storage container can hold a maximum of 15 kg. Using your total from part (a), work out the minimum number of containers needed to store all the crates' combined weight.

   [4 marks]

   (c)

   The manager wants to check the calculation in part (a) using inverse operations. Starting from the total weight found in part (a), show that subtracting the three positive crate weights ($12.6$, $8.75$ and $15$) returns the original adjustment value of $-3.4$ kg, and explain what this confirms about using inverse operations to check calculations.

   [5 marks]

   Total for question 4: 13 marks

End of questions