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Cornerstone Jan 1 - 7 25 questions
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Monday 7 October 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 64 + 90

    Answer: 64 + 90 = 154
  2. 2. Algebra

    Solve: 5x = 35

    Answer: x = 7
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio

    Simplify: 20:12:16

    Answer: 5:3:4
  5. 5. Statistics

    Calculate the range of: 31, 103, 70, 71, 44, 71

    Answer: 72

Tuesday 8 October 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 48 + 84

    Answer: 48 + 84 = 132
  2. 2. Algebra

    Solve: 4x = 44

    Answer: x = 11
  3. 3. Geometry

    Find the area of a circle with radius 5cm

    Answer: 78.54cm²
  4. 4. Ratio

    Simplify: 8:10:4

    Answer: 4:5:2
  5. 5. Statistics

    Calculate the mean of: 21, 39, 21, 46, 26, 37

    Answer: 31.7

Wednesday 9 October 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 59 + ? = 178

    Answer: 119
  2. 2. Algebra

    Solve: x + 13 = 26

    Answer: x = 13
  3. 3. Geometry

    Calculate the area of a right triangle with perpendicular sides 15cm and 11cm

    Answer: 82.5cm²
  4. 4. Ratio

    Find 58% of 236

    Answer: 136.88
  5. 5. Statistics

    Find the mean of: 3, 9, 15, 6

    Answer: 8.25

Thursday 10 October 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 33 + ? = 104

    Answer: 71
  2. 2. Algebra

    Solve: x + 15 = 27

    Answer: x = 12
  3. 3. Geometry

    Opposite = 8cm, hypotenuse = 16cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Simplify: 12:24:12

    Answer: 1:2:1
  5. 5. Statistics

    Find the mean of: 19, 13, 18

    Answer: 16.666666666667

Friday 11 October 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 71 + 86

    Answer: 71 + 86 = 157
  2. 2. Algebra

    Collect like terms: 6x + 3y + 4x + 5y

    Answer: 10x + 8y
  3. 3. Geometry

    Opposite = 19cm, adjacent = 19cm. Calculate the angle

    Answer: 45°
  4. 4. Ratio

    Find 35% of 498

    Answer: 174.3
  5. 5. Statistics

    Calculate the range of: 62, 78, 31, 68, 57, 101

    Answer: 70