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Cornerstone Dec 11 - 17 25 questions
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Monday 11 December 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 7x - 8 = 20

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 19.21cm
  4. 4. Ratio

    Share 60 in the ratio 1:4

    Answer: 12 and 48
  5. 5. Statistics

    Find the mean of: 5, 6, 9, 13, 12

    Answer: 9

Tuesday 12 December 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄10 + 3⁄10

    Answer: 7⁄10
  2. 2. Algebra

    Solve: 5x - 11 = 14

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio

    Share 35 in the ratio 4:1

    Answer: 28 and 7
  5. 5. Statistics

    Find the mean of: 3, 3, 16, 8, 5

    Answer: 7

Wednesday 13 December 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄5 + 2⁄3

    Answer: 22⁄15
  2. 2. Algebra

    Solve: 3x + 10 = 28

    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

    Share 95 in the ratio 3:2

    Answer: 57 and 38
  5. 5. Statistics

    Calculate the mean of: 23, 41, 21, 8, 18, 8, 6. Give your answer to 2 decimal places

    Answer: 17.86

Thursday 14 December 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄6 + 3⁄7

    Answer: 13⁄14
  2. 2. Algebra

    Solve: 5x + 8 = 23

    Answer: x = 3
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 16.28cm
  4. 4. Ratio

    Divide 96 in the ratio 2:3:1

    Answer: 32, 48 and 16
  5. 5. Statistics

    Find the mean of: 13, 11, 15

    Answer: 13

Friday 15 December 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄9 + 2⁄9

    Answer: 8⁄9
  2. 2. Algebra

    Solve: 6x - 11 = 25

    Answer: x = 6
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio

    Divide 176 in the ratio 1:2:1

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

    Calculate the mean of: 23, 49, 31, 36, 25, 32, 48. Give your answer to 2 decimal places

    Answer: 34.86