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Cornerstone Aug 5 - 11 25 questions
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Monday 5 August 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 510 + 110

    Answer: 35
  2. 2. Algebra

    Solve: 6x + 4 = 58

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 6cm

    Answer: 12.53cm
  4. 4. Ratio

    Share 27 in the ratio 1:2

    Answer: 9 and 18
  5. 5. Statistics

    Find the mean of: 12, 18, 15, 3, 8

    Answer: 11.2

Tuesday 6 August 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 45 + 24

    Answer: 1310
  2. 2. Algebra

    Solve: 7x + 13 = 76

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 13cm
  4. 4. Ratio

    Share 48 in the ratio 1:2

    Answer: 16 and 32
  5. 5. Statistics

    Find the mean of: 15, 10, 8

    Answer: 11

Wednesday 7 August 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 58 + 18

    Answer: 34
  2. 2. Algebra

    Solve: 6x - 12 = 66

    Answer: x = 13
  3. 3. Geometry

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

    Answer: 29cm
  4. 4. Ratio

    Share 35 in the ratio 1:4

    Answer: 7 and 28
  5. 5. Statistics

    Calculate the mean of: 6, 41, 44, 21, 26, 44, 44

    Answer: 32.3

Thursday 8 August 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 18 + 48

    Answer: 58
  2. 2. Algebra

    Solve: 7x - 12 = 79

    Answer: x = 13
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 9cm

    Answer: 9.49cm
  4. 4. Ratio

    Share 102 in the ratio 2:1

    Answer: 68 and 34
  5. 5. Statistics

    Calculate the mean of: 10, 35, 15, 40, 41, 27

    Answer: 28

Friday 9 August 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 13 + 26

    Answer: 23
  2. 2. Algebra

    Solve: 3x + 12 = 45

    Answer: x = 11
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 20cm

    Answer: 25cm
  4. 4. Ratio

    Share 84 in the ratio 3:4

    Answer: 36 and 48
  5. 5. Statistics

    Find the mean of: 12, 8, 3

    Answer: 7.6666666666667