Change pack
Cornerstone Feb 24 - Mar 2 25 questions
PDF (questions) PDF (answers)

Monday 24 February 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄9 + 2⁄9

    Answer: 8⁄9
  2. 2. Algebra

    Solve: 2x + 12 = 30

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 14cm

    Answer: 17.2cm
  4. 4. Ratio

    Share 70 in the ratio 3:4

    Answer: 30 and 40
  5. 5. Statistics

    Find the mean of: 10, 17, 17, 12

    Answer: 14

Tuesday 25 February 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 4⁄5

    Answer: 31⁄20
  2. 2. Algebra

    Solve: 4x - 12 = 8

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio

    Share 39 in the ratio 2:1

    Answer: 26 and 13
  5. 5. Statistics

    Calculate the mean of: 38, 50, 10, 6, 8, 47, 28

    Answer: 26.7

Wednesday 26 February 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄7 + 2⁄7

    Answer: 5⁄7
  2. 2. Algebra

    Solve: 7x - 8 = 76

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 9cm

    Answer: 9.85cm
  4. 4. Ratio

    Share 40 in the ratio 1:4

    Answer: 8 and 32
  5. 5. Statistics

    Calculate the mean of: 45, 16, 6, 37, 22, 46

    Answer: 28.7

Thursday 27 February 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 1⁄8

    Answer: 11⁄24
  2. 2. Algebra

    Solve: 5x + 3 = 28

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio

    Share 48 in the ratio 2:1

    Answer: 32 and 16
  5. 5. Statistics

    Find the mean of: 7, 13, 20, 17, 15

    Answer: 14.4

Friday 28 February 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄6 + 6⁄7

    Answer: 71⁄42
  2. 2. Algebra

    Solve: 7x + 9 = 86

    Answer: x = 11
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio

    Share 64 in the ratio 3:1

    Answer: 48 and 16
  5. 5. Statistics

    Find the mean of: 20, 17, 7, 18, 12

    Answer: 14.8