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Cornerstone Jun 17 - 23 25 questions
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Monday 17 June 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄6 + 4⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 7x - 12 = 16

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 11cm

    Answer: 12.08cm
  4. 4. Ratio

    Share 75 in the ratio 4:1

    Answer: 60 and 15
  5. 5. Statistics

    Calculate the mean of: 6, 43, 50, 29, 26, 28, 27

    Answer: 29.9

Tuesday 18 June 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 8x - 5 = 35

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 15cm

    Answer: 15.52cm
  4. 4. Ratio

    Share 80 in the ratio 1:4

    Answer: 16 and 64
  5. 5. Statistics

    Calculate the mean of: 8, 6, 27, 6, 21, 36, 50, 5

    Answer: 19.9

Wednesday 19 June 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄5 + 1⁄7

    Answer: 12⁄35
  2. 2. Algebra

    Solve: 2x + 6 = 22

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Share 51 in the ratio 2:1

    Answer: 34 and 17
  5. 5. Statistics

    Find the mean of: 17, 7, 4

    Answer: 9.3333333333333

Thursday 20 June 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄12 + 6⁄12

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 7x + 9 = 79

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 12.65cm
  4. 4. Ratio

    Share 25 in the ratio 2:3

    Answer: 10 and 15
  5. 5. Statistics

    Calculate the mean of: 47, 44, 20, 6, 11, 7, 15, 38

    Answer: 23.5

Friday 21 June 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄6 + 1⁄5

    Answer: 11⁄30
  2. 2. Algebra

    Solve: 3x - 19 = 2

    Answer: x = 7
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio

    Share 50 in the ratio 1:4

    Answer: 10 and 40
  5. 5. Statistics

    Find the mean of: 12, 4, 2, 17

    Answer: 8.75