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Cornerstone Aug 14 - 20 25 questions
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Monday 14 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄12 + 1⁄12

    Answer: 1⁄6
  2. 2. Algebra

    Solve: 6x + 7 = 67

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 18.44cm
  4. 4. Ratio

    Divide 162 in the ratio 4:2:3

    Answer: 72, 36 and 54
  5. 5. Statistics

    Calculate the mean of: 24, 33, 27, 5, 19, 20. Give your answer to 2 decimal places

    Answer: 21.33

Tuesday 15 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 2⁄8

    Answer: 7⁄12
  2. 2. Algebra

    Solve: 2x - 18 = 4

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Divide 126 in the ratio 1:4:1

    Answer: 21, 84 and 21
  5. 5. Statistics

    Find the mean of: 17, 19, 9

    Answer: 15

Wednesday 16 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄11 + 1⁄11

    Answer: 9⁄11
  2. 2. Algebra

    Solve: 7x - 5 = 44

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 12.04cm
  4. 4. Ratio

    Divide 216 in the ratio 1:4:3

    Answer: 27, 108 and 81
  5. 5. Statistics

    Find the mean of: 6, 15, 16, 7

    Answer: 11

Thursday 17 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 6⁄7

    Answer: 32⁄21
  2. 2. Algebra

    Solve: 6x + 7 = 73

    Answer: x = 11
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio

    Divide 216 in the ratio 4:3:1

    Answer: 108, 81 and 27
  5. 5. Statistics

    Calculate the mean of: 32, 48, 15, 38, 15, 27, 14

    Answer: 27

Friday 18 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄7 + 3⁄4

    Answer: 29⁄28
  2. 2. Algebra

    Solve: 2x + 4 = 28

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 29cm
  4. 4. Ratio

    Divide 176 in the ratio 1:3:4

    Answer: 22, 66 and 88
  5. 5. Statistics

    Calculate the mean of: 31, 14, 42, 10, 13, 17. Give your answer to 2 decimal places

    Answer: 21.17