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Cornerstone Jan 1 - 7 25 questions
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Monday 1 January 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄10 + 3⁄10

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 3x + 14 = 41

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 41cm
  4. 4. Ratio

    Share 30 in the ratio 3:2

    Answer: 18 and 12
  5. 5. Statistics

    Find the mean of: 15, 16, 8

    Answer: 13

Tuesday 2 January 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄5 + 1⁄3

    Answer: 14⁄15
  2. 2. Algebra

    Solve: 5x + 9 = 34

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 5.83cm
  4. 4. Ratio

    Share 48 in the ratio 1:2

    Answer: 16 and 32
  5. 5. Statistics

    Find the mean of: 14, 5, 15, 19, 17

    Answer: 14

Wednesday 3 January 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 3x - 14 = 13

    Answer: x = 9
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio

    Share 133 in the ratio 3:4

    Answer: 57 and 76
  5. 5. Statistics

    Calculate the mean of: 29, 47, 12, 13, 19, 40. Give your answer to 2 decimal places

    Answer: 26.67

Thursday 4 January 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄12 + 1⁄12

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 7x - 9 = 40

    Answer: x = 7
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio

    Divide 120 in the ratio 1:3:1

    Answer: 24, 72 and 24
  5. 5. Statistics

    Find the mean of: 8, 18, 6, 12

    Answer: 11

Friday 5 January 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 5⁄7

    Answer: 41⁄28
  2. 2. Algebra

    Solve: 6x + 8 = 62

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 13.04cm
  4. 4. Ratio

    Divide 144 in the ratio 3:2:4

    Answer: 48, 32 and 64
  5. 5. Statistics

    Calculate the mean of: 46, 23, 33, 6, 31, 44

    Answer: 30.5