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Cornerstone Jul 22 - 28 25 questions
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Monday 22 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄8 + 1⁄4

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 3x - 16 = 17

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 16.28cm
  4. 4. Ratio

    Share 42 in the ratio 1:2

    Answer: 14 and 28
  5. 5. Statistics

    Calculate the mean of: 5, 12, 12, 20, 17, 43, 29, 9. Give your answer to 2 decimal places

    Answer: 18.38

Tuesday 23 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄8 + 3⁄8

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 2x + 3 = 27

    Answer: x = 12
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio

    Share 68 in the ratio 1:3

    Answer: 17 and 51
  5. 5. Statistics

    Find the mean of: 9, 6, 21, 20

    Answer: 14

Wednesday 24 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄12 + 2⁄12

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 6x + 4 = 52

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio

    Divide 70 in the ratio 3:1:1

    Answer: 42, 14 and 14
  5. 5. Statistics

    Calculate the mean of: 32, 33, 27, 10, 7, 47, 41. Give your answer to 2 decimal places

    Answer: 28.14

Thursday 25 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄6 + 1⁄7

    Answer: 41⁄42
  2. 2. Algebra

    Solve: 8x - 20 = 84

    Answer: x = 13
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 17.2cm
  4. 4. Ratio

    Divide 253 in the ratio 3:4:4

    Answer: 69, 92 and 92
  5. 5. Statistics

    Find the mean of: 13, 2, 12, 19, 9

    Answer: 11

Friday 26 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄7 + 1⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 5x - 5 = 35

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 37cm
  4. 4. Ratio

    Divide 60 in the ratio 2:3:1

    Answer: 20, 30 and 10
  5. 5. Statistics

    Find the mean of: 15, 17, 10, 5, 3

    Answer: 10