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Cornerstone Apr 11 - 17 25 questions
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Monday 11 April 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄12 + 2⁄12

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 7x - 12 = 44

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 18.6cm
  4. 4. Ratio

    Divide 145 in the ratio 2:2:1

    Answer: 58, 58 and 29
  5. 5. Statistics

    Calculate the mean of: 32, 43, 47, 46, 14, 21, 47. Give your answer to 2 decimal places

    Answer: 35.71

Tuesday 12 April 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 5⁄8

    Answer: 31⁄24
  2. 2. Algebra

    Solve: 5x - 19 = 51

    Answer: x = 14
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 13.45cm
  4. 4. Ratio

    Divide 130 in the ratio 1:2:2

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

    Calculate the mean of: 37, 9, 18, 49, 12, 26, 45

    Answer: 28

Wednesday 13 April 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄12 + 3⁄12

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 3x + 5 = 35

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 13cm
  4. 4. Ratio

    Divide 100 in the ratio 2:1:2

    Answer: 40, 20 and 40
  5. 5. Statistics

    Find the mean of: 4, 6, 20

    Answer: 10

Thursday 14 April 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄5 + 2⁄5

    Answer: 3⁄5
  2. 2. Algebra

    Solve: 4x + 10 = 30

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio

    Share 30 in the ratio 1:2

    Answer: 10 and 20
  5. 5. Statistics

    Calculate the mean of: 22, 39, 15, 20, 8, 25, 34, 9

    Answer: 21.5

Friday 15 April 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 2⁄5

    Answer: 16⁄15
  2. 2. Algebra

    Solve: 5x - 8 = 67

    Answer: x = 15
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 7.62cm
  4. 4. Ratio

    Share 33 in the ratio 1:2

    Answer: 11 and 22
  5. 5. Statistics

    Find the mean of: 5, 18, 19

    Answer: 14