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Cornerstone May 9 - 15 25 questions
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Monday 9 May 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄4 + 7⁄8

    Answer: 11⁄8
  2. 2. Algebra

    Solve: 5x + 10 = 45

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 29cm
  4. 4. Ratio

    Share 36 in the ratio 1:2

    Answer: 12 and 24
  5. 5. Statistics

    Find the mean of: 7, 3, 11

    Answer: 7

Tuesday 10 May 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄7 + 3⁄5

    Answer: 41⁄35
  2. 2. Algebra

    Solve: 4x + 15 = 59

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 12.37cm
  4. 4. Ratio

    Share 40 in the ratio 3:2

    Answer: 24 and 16
  5. 5. Statistics

    Find the mean of: 9, 13, 8

    Answer: 10

Wednesday 11 May 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄6 + 3⁄6

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 6x - 11 = 67

    Answer: x = 13
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio

    Share 70 in the ratio 4:3

    Answer: 40 and 30
  5. 5. Statistics

    Calculate the mean of: 19, 6, 16, 11, 15, 23, 29

    Answer: 17

Thursday 12 May 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄6 + 2⁄3

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 6x - 20 = 52

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.32cm
  4. 4. Ratio

    Share 56 in the ratio 4:3

    Answer: 32 and 24
  5. 5. Statistics

    Calculate the mean of: 24, 33, 20, 36, 19, 50. Give your answer to 2 decimal places

    Answer: 30.33

Friday 13 May 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄12 + 3⁄12

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 3x + 7 = 28

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Share 35 in the ratio 3:4

    Answer: 15 and 20
  5. 5. Statistics

    Find the mean of: 6, 5, 13, 12

    Answer: 9