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Cornerstone May 2 - 8 25 questions
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Monday 2 May 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 7⁄8 + 2⁄4

    Answer: 11⁄8
  2. 2. Algebra

    Solve: 8x - 7 = 97

    Answer: x = 13
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Divide 52 in the ratio 1:2:1

    Answer: 13, 26 and 13
  5. 5. Statistics

    Find the mean of: 11, 14, 9, 3, 10

    Answer: 9.4

Tuesday 3 May 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄12 + 5⁄12

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 5x + 13 = 43

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 12cm

    Answer: 14.42cm
  4. 4. Ratio

    Divide 90 in the ratio 4:2:3

    Answer: 40, 20 and 30
  5. 5. Statistics

    Calculate the mean of: 16, 12, 36, 16, 36, 45

    Answer: 26.8

Wednesday 4 May 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄6 + 3⁄6

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 3x + 11 = 38

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 6cm

    Answer: 13.42cm
  4. 4. Ratio

    Share 60 in the ratio 3:2

    Answer: 36 and 24
  5. 5. Statistics

    Find the mean of: 9, 7, 10

    Answer: 8.6666666666667

Thursday 5 May 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄5 + 4⁄8

    Answer: 11⁄10
  2. 2. Algebra

    Solve: 5x - 18 = 7

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 50 in the ratio 4:1

    Answer: 40 and 10
  5. 5. Statistics

    Calculate the mean of: 46, 25, 21, 36, 19, 48

    Answer: 32.5

Friday 6 May 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 10⁄12 + 1⁄12

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 8x - 20 = 12

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 14cm

    Answer: 14.32cm
  4. 4. Ratio

    Share 54 in the ratio 1:2

    Answer: 18 and 36
  5. 5. Statistics

    Calculate the mean of: 15, 16, 42, 17, 14, 41, 41

    Answer: 26.6