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Cornerstone Aug 24 - 30 25 questions
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Monday 24 August 2026

Keystones #236 · Five questions · Open this day only

  1. 1. Number

    Divide: 2⁄6 ÷ 3⁄8

    Answer: 8⁄9
  2. 2. Algebra

    Solve: 2x + 10 < 46

    Answer: x < 18
  3. 3. Geometry

    Find the area of a right triangle with base 6cm and height 9cm

    Answer: 27cm²
  4. 4. Ratio

    7 kg costs £10.10. What is the cost of 19 kg?

    Answer: £27.41
  5. 5. Statistics

    What are the modes of: 18, 32, 24, 18, 32, 33

    Answer: 18 and 32

Tuesday 25 August 2026

Keystones #237 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄6 ÷ 2

    Answer: 5⁄12
  2. 2. Algebra

    Solve: 7x - 10 > 35

    Answer: x > 6.4
  3. 3. Geometry

    Calculate the area of a right triangle with perpendicular sides 8cm and 8cm

    Answer: 32cm²
  4. 4. Ratio

    10 kg costs £12.00. What is the cost of 24 kg?

    Answer: £28.80
  5. 5. Statistics

    Find the mode of: 13, 12, 11, 10, 12, 12

    Answer: 12

Wednesday 26 August 2026

Keystones #238 · Five questions · Open this day only

  1. 1. Number

    Divide: 1⁄4 ÷ 4⁄6

    Answer: 3⁄8
  2. 2. Algebra

    Solve: 4x - 7 > 21

    Answer: x > 7
  3. 3. Geometry

    Find the area of a right triangle with base 11cm and height 4cm

    Answer: 22cm²
  4. 4. Ratio

    9 kg costs £13.60. What is the cost of 24 kg?

    Answer: £36.27
  5. 5. Statistics

    Find the mode of: 12, 8, 7, 10, 8, 8

    Answer: 8

Thursday 27 August 2026

Keystones #239 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄5 ÷ 4

    Answer: 1⁄10
  2. 2. Algebra

    Solve: 5x + 8 < 32

    Answer: x < 4.8
  3. 3. Geometry

    Calculate the area of a right triangle with perpendicular sides 15cm and 8cm

    Answer: 60cm²
  4. 4. Ratio

    5 kg costs £46.60. What is the cost of 15 kg?

    Answer: £139.80
  5. 5. Statistics

    What are the modes of: 20, 23, 27, 34, 20, 34

    Answer: 20 and 34

Friday 28 August 2026

Keystones #240 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄5 ÷ 2

    Answer: 1⁄10
  2. 2. Algebra

    Solve: 2x + 8 < 31

    Answer: x < 11.5
  3. 3. Geometry

    Calculate the area of a right triangle with perpendicular sides 11cm and 7cm

    Answer: 38.5cm²
  4. 4. Ratio

    9 kg costs £16.00. What is the cost of 14 kg?

    Answer: £24.89
  5. 5. Statistics

    What are the modes of: 34, 28, 10, 34, 18, 10

    Answer: 10 and 34