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Cornerstone Nov 23 - 29 25 questions
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Monday 23 November 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 5⁄6

    Answer: 3⁄2
  2. 2. Algebra

    Solve: 3x - 9 = 18

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 13.04cm
  4. 4. Ratio

    Divide 234 in the ratio 2:4:3

    Answer: 52, 104 and 78
  5. 5. Statistics

    Calculate the mean of: 15, 44, 31, 38, 40, 21, 12. Give your answer to 2 decimal places

    Answer: 28.71

Tuesday 24 November 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄8 + 2⁄4

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 2x - 8 = 6

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 8.94cm
  4. 4. Ratio

    Share 32 in the ratio 3:1

    Answer: 24 and 8
  5. 5. Statistics

    Find the mean of: 19, 7, 5, 17

    Answer: 12

Wednesday 25 November 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄12 + 5⁄12

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 7x + 4 = 88

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 15.52cm
  4. 4. Ratio

    Share 54 in the ratio 1:2

    Answer: 18 and 36
  5. 5. Statistics

    Calculate the mean of: 24, 49, 11, 15, 9, 16. Give your answer to 2 decimal places

    Answer: 20.67

Thursday 26 November 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄6 + 4⁄5

    Answer: 29⁄30
  2. 2. Algebra

    Solve: 7x + 14 = 49

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 9.85cm
  4. 4. Ratio

    Share 48 in the ratio 1:2

    Answer: 16 and 32
  5. 5. Statistics

    Calculate the mean of: 11, 21, 15, 48, 15, 48, 38

    Answer: 28

Friday 27 November 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄8 + 3⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Solve: 3x - 5 = 7

    Answer: x = 4
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio

    Share 45 in the ratio 1:2

    Answer: 15 and 30
  5. 5. Statistics

    Find the mean of: 11, 5, 16, 16, 12

    Answer: 12