Change pack
Cornerstone Sep 7 - 13 25 questions
PDF (questions) PDF (answers)

Monday 7 September 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄11 + 2⁄11

    Answer: 10⁄11
  2. 2. Algebra

    Solve: 5x + 15 = 30

    Answer: x = 3
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio

    Share 18 in the ratio 1:2

    Answer: 6 and 12
  5. 5. Statistics

    Calculate the mean of: 43, 6, 10, 30, 35, 38, 32, 31

    Answer: 28.1

Tuesday 8 September 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄7 + 5⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 3x + 6 = 42

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Share 90 in the ratio 2:3

    Answer: 36 and 54
  5. 5. Statistics

    Calculate the mean of: 45, 10, 30, 50, 46, 39

    Answer: 36.7

Wednesday 9 September 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄8 + 1⁄6

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 5x - 15 = 50

    Answer: x = 13
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 10cm

    Answer: 10.44cm
  4. 4. Ratio

    Share 56 in the ratio 4:3

    Answer: 32 and 24
  5. 5. Statistics

    Find the mean of: 2, 16, 2, 10, 7

    Answer: 7.4

Thursday 10 September 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 1⁄4

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 3x - 15 = 24

    Answer: x = 13
  3. 3. Geometry

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

    Answer: 29cm
  4. 4. Ratio

    Share 60 in the ratio 1:4

    Answer: 12 and 48
  5. 5. Statistics

    Find the mean of: 5, 9, 4, 3

    Answer: 5.25

Friday 11 September 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄7 + 2⁄7

    Answer: 3⁄7
  2. 2. Algebra

    Solve: 6x + 12 = 42

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 12.04cm
  4. 4. Ratio

    Share 84 in the ratio 3:4

    Answer: 36 and 48
  5. 5. Statistics

    Calculate the mean of: 6, 7, 42, 5, 44, 43, 12

    Answer: 22.7