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Cornerstone Nov 26 - Dec 2 25 questions
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Monday 26 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄10 + 1⁄10

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 3x + 7 = 31

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 9cm

    Answer: 14.21cm
  4. 4. Ratio

    Divide 60 in the ratio 1:3:1

    Answer: 12, 36 and 12
  5. 5. Statistics

    Find the mean of: 10, 13, 8

    Answer: 10.333333333333

Tuesday 27 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄5 + 1⁄4

    Answer: 21⁄20
  2. 2. Algebra

    Solve: 4x - 8 = 52

    Answer: x = 15
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio

    Divide 192 in the ratio 1:4:3

    Answer: 24, 96 and 72
  5. 5. Statistics

    Calculate the mean of: 38, 30, 49, 33, 16, 30, 8, 30

    Answer: 29.3

Wednesday 28 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 6⁄7

    Answer: 31⁄28
  2. 2. Algebra

    Solve: 5x - 10 = 65

    Answer: x = 15
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Divide 65 in the ratio 1:2:2

    Answer: 13, 26 and 26
  5. 5. Statistics

    Calculate the mean of: 27, 47, 24, 43, 41, 10, 12

    Answer: 29.1

Thursday 29 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄11 + 7⁄11

    Answer: 10⁄11
  2. 2. Algebra

    Solve: 4x + 12 = 24

    Answer: x = 3
  3. 3. Geometry

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

    Answer: 10.3cm
  4. 4. Ratio

    Divide 117 in the ratio 4:3:2

    Answer: 52, 39 and 26
  5. 5. Statistics

    Find the mean of: 9, 12, 3, 7

    Answer: 7.75

Friday 30 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄5 + 1⁄5

    Answer: 3⁄5
  2. 2. Algebra

    Solve: 6x + 13 = 67

    Answer: x = 9
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 20cm and 21cm

    Answer: 29cm
  4. 4. Ratio

    Divide 208 in the ratio 3:1:4

    Answer: 78, 26 and 104
  5. 5. Statistics

    Find the mean of: 20, 10, 16

    Answer: 15.333333333333