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Cornerstone Jul 3 - 9 25 questions
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Monday 3 July 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄8 + 2⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Solve: 3x - 8 = 16

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 9.9cm
  4. 4. Ratio

    Divide 95 in the ratio 2:2:1

    Answer: 38, 38 and 19
  5. 5. Statistics

    Find the mean of: 7, 11, 11, 19

    Answer: 12

Tuesday 4 July 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄9 + 2⁄9

    Answer: 5⁄9
  2. 2. Algebra

    Solve: 6x - 16 = 50

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 12.04cm
  4. 4. Ratio

    Share 28 in the ratio 3:1

    Answer: 21 and 7
  5. 5. Statistics

    Calculate the mean of: 23, 25, 11, 26, 31, 41, 21. Give your answer to 2 decimal places

    Answer: 25.43

Wednesday 5 July 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 1⁄4

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 7x + 7 = 28

    Answer: x = 3
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 49 in the ratio 3:4

    Answer: 21 and 28
  5. 5. Statistics

    Find the mean of: 3, 15, 9, 3, 15

    Answer: 9

Thursday 6 July 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄8 + 1⁄6

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 3x + 5 = 38

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 18.03cm
  4. 4. Ratio

    Share 49 in the ratio 4:3

    Answer: 28 and 21
  5. 5. Statistics

    Find the mean of: 11, 20, 12, 9

    Answer: 13

Friday 7 July 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 2⁄6

    Answer: 7⁄12
  2. 2. Algebra

    Solve: 4x - 11 = 13

    Answer: x = 6
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio

    Share 33 in the ratio 1:2

    Answer: 11 and 22
  5. 5. Statistics

    Calculate the mean of: 19, 36, 7, 18, 24, 38, 49, 42. Give your answer to 2 decimal places

    Answer: 29.13