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Cornerstone Oct 28 - Nov 3 25 questions
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Monday 28 October 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 4x + 4 = 36

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio

    Share 57 in the ratio 2:1

    Answer: 38 and 19
  5. 5. Statistics

    Calculate the mean of: 33, 10, 12, 27, 15, 7, 21

    Answer: 17.9

Tuesday 29 October 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄5 + 1⁄3

    Answer: 8⁄15
  2. 2. Algebra

    Solve: 4x - 9 = 7

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 6cm

    Answer: 9.22cm
  4. 4. Ratio

    Share 35 in the ratio 3:2

    Answer: 21 and 14
  5. 5. Statistics

    Find the mean of: 5, 13, 14, 20

    Answer: 13

Wednesday 30 October 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄4 + 6⁄8

    Answer: 5⁄4
  2. 2. Algebra

    Solve: 4x - 14 = 26

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 41cm
  4. 4. Ratio

    Share 44 in the ratio 3:1

    Answer: 33 and 11
  5. 5. Statistics

    Find the mean of: 13, 6, 19

    Answer: 12.666666666667

Thursday 31 October 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄6 + 1⁄6

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 2x + 4 = 10

    Answer: x = 3
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 7cm

    Answer: 7.62cm
  4. 4. Ratio

    Share 36 in the ratio 3:1

    Answer: 27 and 9
  5. 5. Statistics

    Calculate the mean of: 29, 25, 39, 42, 32, 27

    Answer: 32.3

Friday 1 November 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄5 + 2⁄5

    Answer: 3⁄5
  2. 2. Algebra

    Solve: 3x + 13 = 34

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 9cm

    Answer: 12.04cm
  4. 4. Ratio

    Share 30 in the ratio 3:2

    Answer: 18 and 12
  5. 5. Statistics

    Find the mean of: 14, 9, 9

    Answer: 10.666666666667