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Cornerstone May 14 - 20 25 questions
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Monday 14 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 3⁄4

    Answer: 17⁄12
  2. 2. Algebra

    Solve: 2x + 4 = 24

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 10.3cm
  4. 4. Ratio

    Share 52 in the ratio 1:3

    Answer: 13 and 39
  5. 5. Statistics

    Find the mean of: 21, 3, 6

    Answer: 10

Tuesday 15 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄9 + 1⁄9

    Answer: 8⁄9
  2. 2. Algebra

    Solve: 5x - 6 = 69

    Answer: x = 15
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 54 in the ratio 1:2

    Answer: 18 and 36
  5. 5. Statistics

    Calculate the mean of: 17, 35, 20, 30, 24, 18

    Answer: 24

Wednesday 16 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄7 + 2⁄8

    Answer: 11⁄28
  2. 2. Algebra

    Solve: 2x - 10 = 12

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 17.03cm
  4. 4. Ratio

    Share 40 in the ratio 3:1

    Answer: 30 and 10
  5. 5. Statistics

    Calculate the mean of: 28, 32, 11, 24, 35, 36, 23

    Answer: 27

Thursday 17 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄8 + 1⁄8

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 7x + 6 = 34

    Answer: x = 4
  3. 3. Geometry

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

    Answer: 20cm
  4. 4. Ratio

    Share 35 in the ratio 3:4

    Answer: 15 and 20
  5. 5. Statistics

    Find the mean of: 2, 13, 12, 17

    Answer: 11

Friday 18 May 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄8 + 2⁄8

    Answer: 5⁄8
  2. 2. Algebra

    Solve: 2x + 3 = 21

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Share 80 in the ratio 4:1

    Answer: 64 and 16
  5. 5. Statistics

    Find the mean of: 15, 2, 3, 20

    Answer: 10