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

Monday 10 February 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄5 + 1⁄7

    Answer: 26⁄35
  2. 2. Algebra

    Solve: 2x + 7 = 23

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 7cm

    Answer: 8.6cm
  4. 4. Ratio

    Divide 200 in the ratio 3:3:2

    Answer: 75, 75 and 50
  5. 5. Statistics

    Calculate the mean of: 38, 50, 22, 48, 42, 40, 17

    Answer: 36.7

Tuesday 11 February 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄11 + 6⁄11

    Answer: 8⁄11
  2. 2. Algebra

    Solve: 5x - 17 = 8

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 41cm
  4. 4. Ratio

    Divide 156 in the ratio 1:3:2

    Answer: 26, 78 and 52
  5. 5. Statistics

    Find the mean of: 10, 19, 3

    Answer: 10.666666666667

Wednesday 12 February 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 2⁄5

    Answer: 13⁄20
  2. 2. Algebra

    Solve: 4x - 15 = 41

    Answer: x = 14
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 5cm

    Answer: 6.4cm
  4. 4. Ratio

    Divide 98 in the ratio 1:3:3

    Answer: 14, 42 and 42
  5. 5. Statistics

    Find the mean of: 11, 3, 10

    Answer: 8

Thursday 13 February 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄8 + 2⁄7

    Answer: 23⁄56
  2. 2. Algebra

    Solve: 4x + 13 = 53

    Answer: x = 10
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio

    Divide 84 in the ratio 1:2:1

    Answer: 21, 42 and 21
  5. 5. Statistics

    Calculate the mean of: 47, 33, 40, 45, 29, 50, 11, 40

    Answer: 36.9

Friday 14 February 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄6 + 1⁄6

    Answer: 1⁄3
  2. 2. Algebra

    Solve: 7x + 7 = 49

    Answer: x = 6
  3. 3. Geometry

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

    Answer: 13cm
  4. 4. Ratio

    Share 45 in the ratio 2:3

    Answer: 18 and 27
  5. 5. Statistics

    Find the mean of: 18, 13, 2, 13, 2

    Answer: 9.6