Change pack
Cornerstone Nov 10 - 16 25 questions
PDF (questions) PDF (answers)

Monday 10 November 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄7 + 3⁄7

    Answer: 5⁄7
  2. 2. Algebra

    Solve: 7x - 10 = 39

    Answer: x = 7
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio

    Divide 250 in the ratio 1:2:2

    Answer: 50, 100 and 100
  5. 5. Statistics

    Find the mean of: 10, 16, 12, 18, 11

    Answer: 13.4

Tuesday 11 November 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄5 + 3⁄6

    Answer: 11⁄10
  2. 2. Algebra

    Solve: 4x + 12 = 32

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 7cm

    Answer: 11.4cm
  4. 4. Ratio

    Divide 98 in the ratio 3:2:2

    Answer: 42, 28 and 28
  5. 5. Statistics

    Calculate the mean of: 37, 17, 46, 11, 11, 16

    Answer: 23

Wednesday 12 November 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 10⁄12 + 1⁄12

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 3x + 11 = 26

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 20cm and 21cm

    Answer: 29cm
  4. 4. Ratio

    Divide 125 in the ratio 2:1:2

    Answer: 50, 25 and 50
  5. 5. Statistics

    Calculate the mean of: 11, 9, 6, 42, 26, 15

    Answer: 18.2

Thursday 13 November 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄8 + 1⁄4

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 8x - 19 = 13

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 7cm

    Answer: 13.89cm
  4. 4. Ratio

    Divide 96 in the ratio 1:1:2

    Answer: 24, 24 and 48
  5. 5. Statistics

    Find the mean of: 5, 15, 18

    Answer: 12.666666666667

Friday 14 November 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄4 + 1⁄3

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 2x - 10 = 16

    Answer: x = 13
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 9cm

    Answer: 12.04cm
  4. 4. Ratio

    Share 70 in the ratio 3:2

    Answer: 42 and 28
  5. 5. Statistics

    Calculate the mean of: 21, 39, 12, 17, 26, 11, 11

    Answer: 19.6