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Cornerstone Jul 18 - 24 25 questions
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Monday 18 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 3⁄8

    Answer: 25⁄24
  2. 2. Algebra

    Solve: 5x + 7 = 32

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 13cm
  4. 4. Ratio

    Divide 117 in the ratio 2:3:4

    Answer: 26, 39 and 52
  5. 5. Statistics

    Calculate the mean of: 5, 37, 38, 48, 15, 33. Give your answer to 2 decimal places

    Answer: 29.33

Tuesday 19 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄7 + 5⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 7x - 15 = 13

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 10.63cm
  4. 4. Ratio

    Divide 91 in the ratio 3:2:2

    Answer: 39, 26 and 26
  5. 5. Statistics

    Find the mean of: 18, 8, 23, 11

    Answer: 15

Wednesday 20 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄6 + 5⁄8

    Answer: 19⁄24
  2. 2. Algebra

    Solve: 4x - 19 = 1

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio

    Divide 184 in the ratio 1:3:4

    Answer: 23, 69 and 92
  5. 5. Statistics

    Calculate the mean of: 9, 28, 23, 47, 16, 42, 5. Give your answer to 2 decimal places

    Answer: 24.29

Thursday 21 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄10 + 5⁄10

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 3x + 5 = 26

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 17.2cm
  4. 4. Ratio

    Divide 144 in the ratio 4:3:2

    Answer: 64, 48 and 32
  5. 5. Statistics

    Find the mean of: 14, 5, 20, 1

    Answer: 10

Friday 22 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 4⁄6

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 6x + 14 = 68

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Divide 264 in the ratio 4:3:4

    Answer: 96, 72 and 96
  5. 5. Statistics

    Find the mean of: 19, 2, 11, 20

    Answer: 13