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Cornerstone Aug 19 - 25 25 questions
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Monday 19 August 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄7 + 1⁄7

    Answer: 4⁄7
  2. 2. Algebra

    Solve: 5x - 16 = 44

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 13cm
  4. 4. Ratio

    Divide 290 in the ratio 3:3:4

    Answer: 87, 87 and 116
  5. 5. Statistics

    Find the mean of: 20, 2, 18

    Answer: 13.333333333333

Tuesday 20 August 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄8 + 2⁄6

    Answer: 23⁄24
  2. 2. Algebra

    Solve: 6x - 10 = 62

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 4cm

    Answer: 8.94cm
  4. 4. Ratio

    Divide 132 in the ratio 4:3:4

    Answer: 48, 36 and 48
  5. 5. Statistics

    Calculate the mean of: 19, 40, 44, 33, 9, 46, 13, 46

    Answer: 31.3

Wednesday 21 August 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄9 + 5⁄9

    Answer: 7⁄9
  2. 2. Algebra

    Solve: 4x + 6 = 34

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Divide 153 in the ratio 2:3:4

    Answer: 34, 51 and 68
  5. 5. Statistics

    Find the mean of: 8, 14, 10, 20

    Answer: 13

Thursday 22 August 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄5 + 5⁄7

    Answer: 39⁄35
  2. 2. Algebra

    Solve: 4x + 11 = 27

    Answer: x = 4
  3. 3. Geometry

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

    Answer: 12.08cm
  4. 4. Ratio

    Divide 66 in the ratio 4:1:1

    Answer: 44, 11 and 11
  5. 5. Statistics

    Find the mean of: 3, 2, 12

    Answer: 5.6666666666667

Friday 23 August 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 9⁄11 + 1⁄11

    Answer: 10⁄11
  2. 2. Algebra

    Solve: 3x - 10 = 14

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 20cm
  4. 4. Ratio

    Divide 138 in the ratio 3:2:1

    Answer: 69, 46 and 23
  5. 5. Statistics

    Calculate the mean of: 37, 5, 5, 29, 32, 17

    Answer: 20.8