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Cornerstone Dec 24 - 30 25 questions
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Monday 24 December 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄8 + 1⁄8

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 3x - 7 = 20

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Share 44 in the ratio 3:1

    Answer: 33 and 11
  5. 5. Statistics

    Calculate the mean of: 10, 19, 18, 8, 22, 8, 15

    Answer: 14.3

Tuesday 25 December 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄4 + 1⁄3

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 3x + 7 = 40

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 11cm

    Answer: 12.08cm
  4. 4. Ratio

    Share 27 in the ratio 2:1

    Answer: 18 and 9
  5. 5. Statistics

    Find the mean of: 14, 15, 18, 7

    Answer: 13.5

Wednesday 26 December 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄10 + 2⁄10

    Answer: 2⁄5
  2. 2. Algebra

    Solve: 3x + 10 = 34

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio

    Share 78 in the ratio 1:2

    Answer: 26 and 52
  5. 5. Statistics

    Find the mean of: 9, 18, 14

    Answer: 13.666666666667

Thursday 27 December 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 4⁄5

    Answer: 17⁄15
  2. 2. Algebra

    Solve: 4x - 14 = 14

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 10cm

    Answer: 10.44cm
  4. 4. Ratio

    Share 84 in the ratio 2:1

    Answer: 56 and 28
  5. 5. Statistics

    Calculate the mean of: 42, 10, 11, 44, 17, 47

    Answer: 28.5

Friday 28 December 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄6 + 2⁄3

    Answer: 3⁄2
  2. 2. Algebra

    Solve: 2x - 6 = 16

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 5cm

    Answer: 10.3cm
  4. 4. Ratio

    Share 45 in the ratio 1:4

    Answer: 9 and 36
  5. 5. Statistics

    Calculate the mean of: 26, 50, 32, 20, 32, 50, 24

    Answer: 33.4