Change pack
Cornerstone Jan 1 - 7 25 questions
PDF (questions) PDF (answers)

Monday 30 January 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 152, 222, and 84

    Answer: 458
  2. 2. Algebra

    Solve: x + 3 = 9

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 4cm

    Answer: 8.94cm
  4. 4. Ratio

    Simplify the ratio 28:24

    Answer: 7:6
  5. 5. Statistics

    Calculate the mean of: 13, 44, 27, 33, 30, 33, 45, 35

    Answer: 32.5

Tuesday 31 January 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 85 + 75

    Answer: 85 + 75 = 160
  2. 2. Algebra

    Factorise: 7x² + 8x

    Answer: x(7x + 8)
  3. 3. Geometry

    Opposite = 10cm, hypotenuse = 11.5cm. Find the angle

    Answer: 60° (approximately)
  4. 4. Ratio

    Simplify the ratio 14:16

    Answer: 7:8
  5. 5. Statistics

    Find the mean of: 15, 4, 7, 17, 18

    Answer: 12.2

Wednesday 1 February 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 61 + 43

    Answer: 61 + 43 = 104
  2. 2. Algebra

    Solve: x + 14 = 17

    Answer: x = 3
  3. 3. Geometry

    Calculate the area of a circle with diameter 21cm

    Answer: 346.36cm²
  4. 4. Ratio

    Calculate 10% of 151

    Answer: 15.1
  5. 5. Statistics

    A bag has 7 red and 8 blue balls. What is the probability of picking a red ball?

    Answer: 715

Thursday 2 February 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 648 + 828

    Answer: 648 + 828 = 1476
  2. 2. Algebra

    Factorise: 30x + 35

    Answer: 5(6x + 7)
  3. 3. Geometry

    Opposite = 10cm, hypotenuse = 20cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Simplify the ratio 10:6

    Answer: 5:3
  5. 5. Statistics

    A bag has 7 red and 6 blue balls. What is the probability of picking a red ball?

    Answer: 713

Friday 3 February 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 38 + 35

    Answer: 38 + 35 = 73
  2. 2. Algebra

    Collect like terms: 5x + 2y + 3x + 8y

    Answer: 8x + 10y
  3. 3. Geometry

    Opposite = 20cm, adjacent = 10cm. Calculate the angle

    Answer: 63.4°
  4. 4. Ratio

    Simplify the ratio 15:25

    Answer: 3:5
  5. 5. Statistics

    What is the probability of getting heads when flipping a fair coin?

    Answer: 12