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Cornerstone Jan 4 - 10 25 questions
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Monday 4 January 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 6x - 6 = 60

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 8.94cm
  4. 4. Ratio

    Divide 152 in the ratio 3:1:4

    Answer: 57, 19 and 76
  5. 5. Statistics

    Find the mean of: 4, 18, 9, 14, 15

    Answer: 12

Tuesday 5 January 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄8 + 3⁄5

    Answer: 17⁄20
  2. 2. Algebra

    Solve: 7x + 4 = 53

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 29cm
  4. 4. Ratio

    Divide 126 in the ratio 2:3:1

    Answer: 42, 63 and 21
  5. 5. Statistics

    Calculate the mean of: 34, 38, 34, 47, 11, 17, 44. Give your answer to 2 decimal places

    Answer: 32.14

Wednesday 6 January 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄9 + 5⁄9

    Answer: 7⁄9
  2. 2. Algebra

    Solve: 2x + 8 = 24

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 12.04cm
  4. 4. Ratio

    Divide 160 in the ratio 4:3:1

    Answer: 80, 60 and 20
  5. 5. Statistics

    Calculate the mean of: 50, 17, 34, 35, 5, 20, 50. Give your answer to 2 decimal places

    Answer: 30.14

Thursday 7 January 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄8 + 1⁄7

    Answer: 43⁄56
  2. 2. Algebra

    Solve: 7x - 18 = 10

    Answer: x = 4
  3. 3. Geometry

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

    Answer: 10cm
  4. 4. Ratio

    Divide 66 in the ratio 2:1:3

    Answer: 22, 11 and 33
  5. 5. Statistics

    Find the mean of: 19, 13, 3, 13, 7

    Answer: 11

Friday 8 January 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 1⁄5

    Answer: 8⁄15
  2. 2. Algebra

    Solve: 2x - 12 = 2

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Divide 120 in the ratio 2:2:1

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

    Find the mean of: 17, 13, 6, 11, 13

    Answer: 12