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Cornerstone Sep 23 - 29 25 questions
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Monday 23 September 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄6 + 2⁄6

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 2x + 13 = 35

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 11cm

    Answer: 11.7cm
  4. 4. Ratio

    Share 28 in the ratio 1:3

    Answer: 7 and 21
  5. 5. Statistics

    Calculate the mean of: 30, 49, 9, 40, 11, 7, 16, 9

    Answer: 21.4

Tuesday 24 September 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄6 + 4⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 5x + 5 = 35

    Answer: x = 6
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio

    Divide 119 in the ratio 1:2:4

    Answer: 17, 34 and 68
  5. 5. Statistics

    Find the mean of: 6, 20, 8, 14

    Answer: 12

Wednesday 25 September 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄5 + 1⁄3

    Answer: 14⁄15
  2. 2. Algebra

    Solve: 4x - 10 = 30

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 9.9cm
  4. 4. Ratio

    Divide 192 in the ratio 2:1:1

    Answer: 96, 48 and 48
  5. 5. Statistics

    Calculate the mean of: 31, 21, 43, 34, 31, 29, 46, 10

    Answer: 30.6

Thursday 26 September 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄11 + 2⁄11

    Answer: 9⁄11
  2. 2. Algebra

    Solve: 5x - 13 = 22

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Divide 200 in the ratio 2:1:2

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

    Calculate the mean of: 10, 6, 11, 26, 10, 21, 8

    Answer: 13.1

Friday 27 September 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄4 + 4⁄8

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 4x + 7 = 39

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 14cm

    Answer: 16.64cm
  4. 4. Ratio

    Divide 168 in the ratio 1:2:4

    Answer: 24, 48 and 96
  5. 5. Statistics

    Find the mean of: 7, 4, 3, 15, 5

    Answer: 6.8