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Cornerstone Nov 6 - 12 25 questions
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Monday 6 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 6x + 3 = 27

    Answer: x = 4
  3. 3. Geometry

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

    Answer: 41cm
  4. 4. Ratio

    Divide 168 in the ratio 2:2:3

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

    Calculate the mean of: 21, 31, 8, 15, 49, 15. Give your answer to 2 decimal places

    Answer: 23.17

Tuesday 7 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄8 + 3⁄6

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 8x - 17 = 79

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 17.49cm
  4. 4. Ratio

    Divide 100 in the ratio 2:1:2

    Answer: 40, 20 and 40
  5. 5. Statistics

    Find the mean of: 19, 8, 18

    Answer: 15

Wednesday 8 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄8 + 5⁄7

    Answer: 41⁄28
  2. 2. Algebra

    Solve: 3x - 6 = 36

    Answer: x = 14
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 13.45cm
  4. 4. Ratio

    Divide 140 in the ratio 2:4:1

    Answer: 40, 80 and 20
  5. 5. Statistics

    Find the mean of: 6, 11, 5, 25, 13

    Answer: 12

Thursday 9 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄9 + 2⁄9

    Answer: 1⁄3
  2. 2. Algebra

    Solve: 2x + 12 = 28

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 37cm
  4. 4. Ratio

    Divide 130 in the ratio 3:3:4

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

    Calculate the mean of: 26, 6, 32, 42, 49, 15, 39, 36. Give your answer to 2 decimal places

    Answer: 30.63

Friday 10 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄8 + 3⁄8

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 3x + 10 = 25

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 6.71cm
  4. 4. Ratio

    Divide 242 in the ratio 4:4:3

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

    Calculate the mean of: 47, 20, 35, 34, 48, 33, 29. Give your answer to 2 decimal places

    Answer: 35.14