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Cornerstone Jul 1 - 7 25 questions
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Monday 1 July 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄9 + 1⁄9

    Answer: 7⁄9
  2. 2. Algebra

    Solve: 6x + 14 = 44

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio

    Divide 135 in the ratio 1:2:2

    Answer: 27, 54 and 54
  5. 5. Statistics

    Calculate the mean of: 26, 23, 23, 14, 33, 32

    Answer: 25.2

Tuesday 2 July 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄8 + 1⁄6

    Answer: 13⁄24
  2. 2. Algebra

    Solve: 5x + 11 = 51

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 9cm

    Answer: 15cm
  4. 4. Ratio

    Divide 125 in the ratio 2:1:2

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

    Calculate the mean of: 14, 15, 24, 44, 17, 41, 15, 28

    Answer: 24.8

Wednesday 3 July 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄12 + 3⁄12

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 7x - 17 = 18

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 12cm

    Answer: 13.42cm
  4. 4. Ratio

    Divide 105 in the ratio 3:1:3

    Answer: 45, 15 and 45
  5. 5. Statistics

    Find the mean of: 14, 3, 3, 10, 2

    Answer: 6.4

Thursday 4 July 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄5 + 1⁄5

    Answer: 2⁄5
  2. 2. Algebra

    Solve: 4x - 12 = 32

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 30 in the ratio 2:1

    Answer: 20 and 10
  5. 5. Statistics

    Calculate the mean of: 37, 37, 32, 46, 33, 15, 43, 38

    Answer: 35.1

Friday 5 July 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄5 + 5⁄6

    Answer: 49⁄30
  2. 2. Algebra

    Solve: 7x + 12 = 54

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 12cm

    Answer: 12.65cm
  4. 4. Ratio

    Share 95 in the ratio 3:2

    Answer: 57 and 38
  5. 5. Statistics

    Find the mean of: 3, 19, 11, 14, 16

    Answer: 12.6