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Lintel Jan 1 - 7 25 questions
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Monday 18 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the missing number: 9.92 + □ = 17.68

    Answer: □ = 7.76
  2. 2. Algebra

    Solve: x2 = 15.5

    Answer: x = 31
  3. 3. Geometry

    Adjacent = 19cm, hypotenuse = 25cm. Find the angle

    Answer: 40.5°
  4. 4. Ratio

    Calculate 14.5% of 405

    Answer: 58.73
  5. 5. Statistics

    A bag has 6 red and 6 blue balls. What is the probability of picking a red ball?

    Answer: 12

Tuesday 19 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 978 + 269

    Answer: 978 + 269 = 1247
  2. 2. Algebra

    Solve: 9x = 81

    Answer: x = 9
  3. 3. Geometry

    Opposite = 12cm, adjacent = 10cm. Calculate the angle

    Answer: 50.2°
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

    Find the range of: 34, -23, -13, 23, 28

    Answer: 57

Wednesday 20 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1.9 + 91.64 + 0.233

    Answer: 1.9 + 91.64 + 0.233 = 93.773
  2. 2. Algebra

    Factorise: 6x² + 7x

    Answer: x(6x + 7)
  3. 3. Geometry

    Find the distance between (-3, -8) and (7, 9)

    Answer: 19.72
  4. 4. Ratio

    Calculate 47.8% of 202

    Answer: 96.56
  5. 5. Statistics

    A bag has 6 red and 7 blue balls. What is the probability of picking a red ball?

    Answer: 613

Thursday 21 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 279, 275, and 94

    Answer: 648
  2. 2. Algebra

    Factorise fully: 8x² + 28x

    Answer: 4x(2x + 7)
  3. 3. Geometry

    Opposite = 9cm, adjacent = 20cm. Calculate the angle

    Answer: 24.2°
  4. 4. Ratio

    Calculate 16.8% of 270

    Answer: 45.36
  5. 5. Statistics

    Find the range of: 18, 20, -3, -10, 20

    Answer: 30

Friday 22 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 12 + 23 + 12

    Answer: 53
  2. 2. Algebra

    Factorise fully: 20x² + 28x

    Answer: 4x(5x + 7)
  3. 3. Geometry

    Adjacent = 18cm, hypotenuse = 38cm. Find the angle

    Answer: 61.7°
  4. 4. Ratio

    Calculate 24.4% of 366

    Answer: 89.3
  5. 5. Statistics

    Find the range of: -1, -16, -3, -13, 37

    Answer: 53