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Cornerstone Nov 16 - 22 25 questions
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Monday 16 November 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄7 + 3⁄5

    Answer: 41⁄35
  2. 2. Algebra

    Solve: 2x - 12 = 14

    Answer: x = 13
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 7.81cm
  4. 4. Ratio

    Divide 190 in the ratio 2:1:2

    Answer: 76, 38 and 76
  5. 5. Statistics

    Find the mean of: 7, 19, 16

    Answer: 14

Tuesday 17 November 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 9⁄11 + 1⁄11

    Answer: 10⁄11
  2. 2. Algebra

    Solve: 4x + 12 = 28

    Answer: x = 4
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio

    Divide 136 in the ratio 3:4:1

    Answer: 51, 68 and 17
  5. 5. Statistics

    Calculate the mean of: 46, 8, 20, 35, 33, 20

    Answer: 27

Wednesday 18 November 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄5 + 2⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 3x + 10 = 43

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Divide 220 in the ratio 4:3:4

    Answer: 80, 60 and 80
  5. 5. Statistics

    Calculate the mean of: 38, 17, 20, 18, 37, 23, 20. Give your answer to 2 decimal places

    Answer: 24.71

Thursday 19 November 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 7⁄8

    Answer: 29⁄24
  2. 2. Algebra

    Solve: 2x - 10 = 10

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 11.7cm
  4. 4. Ratio

    Divide 152 in the ratio 1:2:1

    Answer: 38, 76 and 38
  5. 5. Statistics

    Find the mean of: 3, 15, 2, 3, 2

    Answer: 5

Friday 20 November 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄7 + 2⁄7

    Answer: 4⁄7
  2. 2. Algebra

    Solve: 3x - 10 = 17

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 10cm
  4. 4. Ratio

    Divide 198 in the ratio 4:3:4

    Answer: 72, 54 and 72
  5. 5. Statistics

    Calculate the mean of: 6, 10, 47, 8, 26, 50, 32. Give your answer to 2 decimal places

    Answer: 25.57