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Cornerstone Jan 11 - 17 25 questions
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Monday 11 January 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄6 + 2⁄3

    Answer: 7⁄6
  2. 2. Algebra

    Solve: 3x - 17 = 7

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 9.85cm
  4. 4. Ratio

    Divide 102 in the ratio 3:2:1

    Answer: 51, 34 and 17
  5. 5. Statistics

    Find the mean of: 18, 5, 16, 6, 15

    Answer: 12

Tuesday 12 January 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄7 + 2⁄7

    Answer: 3⁄7
  2. 2. Algebra

    Solve: 6x - 18 = 18

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 17.69cm
  4. 4. Ratio

    Divide 144 in the ratio 1:2:3

    Answer: 24, 48 and 72
  5. 5. Statistics

    Find the mean of: 9, 20, 1

    Answer: 10

Wednesday 13 January 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄4 + 3⁄6

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 6x + 10 = 46

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 16.16cm
  4. 4. Ratio

    Divide 198 in the ratio 3:2:4

    Answer: 66, 44 and 88
  5. 5. Statistics

    Calculate the mean of: 31, 44, 15, 8, 42, 30. Give your answer to 2 decimal places

    Answer: 28.33

Thursday 14 January 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 1⁄3

    Answer: 13⁄12
  2. 2. Algebra

    Solve: 4x + 8 = 32

    Answer: x = 6
  3. 3. Geometry

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

    Answer: 14.14cm
  4. 4. Ratio

    Share 100 in the ratio 4:1

    Answer: 80 and 20
  5. 5. Statistics

    Find the mean of: 12, 7, 14, 13, 19

    Answer: 13

Friday 15 January 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄10 + 6⁄10

    Answer: 7⁄10
  2. 2. Algebra

    Solve: 6x - 12 = 12

    Answer: x = 4
  3. 3. Geometry

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

    Answer: 41cm
  4. 4. Ratio

    Share 57 in the ratio 1:2

    Answer: 19 and 38
  5. 5. Statistics

    Calculate the mean of: 10, 46, 47, 36, 48, 29, 16. Give your answer to 2 decimal places

    Answer: 33.14