Change pack
Cornerstone Dec 30 - Jan 5 25 questions
PDF (questions) PDF (answers)

Monday 30 December 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄6 + 3⁄5

    Answer: 19⁄15
  2. 2. Algebra

    Solve: 6x + 5 = 59

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 15cm

    Answer: 17cm
  4. 4. Ratio

    Share 55 in the ratio 4:1

    Answer: 44 and 11
  5. 5. Statistics

    Find the mean of: 20, 19, 16, 17, 5

    Answer: 15.4

Tuesday 31 December 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄10 + 1⁄10

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 2x - 11 = 15

    Answer: x = 13
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio

    Share 102 in the ratio 1:2

    Answer: 34 and 68
  5. 5. Statistics

    Calculate the mean of: 23, 39, 49, 23, 49, 20, 17

    Answer: 31.4

Wednesday 1 January 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄5 + 1⁄7

    Answer: 12⁄35
  2. 2. Algebra

    Solve: 4x + 5 = 53

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 13.89cm
  4. 4. Ratio

    Divide 216 in the ratio 3:3:2

    Answer: 81, 81 and 54
  5. 5. Statistics

    Find the mean of: 11, 14, 14

    Answer: 13

Thursday 2 January 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄8 + 5⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Solve: 7x + 12 = 68

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 41cm
  4. 4. Ratio

    Divide 216 in the ratio 4:1:4

    Answer: 96, 24 and 96
  5. 5. Statistics

    Find the mean of: 4, 12, 7, 17

    Answer: 10

Friday 3 January 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 3⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 7x - 11 = 31

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 13cm

    Answer: 14.32cm
  4. 4. Ratio

    Divide 96 in the ratio 1:3:2

    Answer: 16, 48 and 32
  5. 5. Statistics

    Calculate the mean of: 43, 40, 44, 19, 6, 31, 5

    Answer: 26.9