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Cornerstone Jan 1 - 7 25 questions
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Monday 8 July 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 50 + 47

    Answer: 50 + 47 = 97
  2. 2. Algebra

    Simplify: 2x + 9x

    Answer: 11x
  3. 3. Geometry

    Opposite = 13cm, adjacent = 10cm. Calculate the angle

    Answer: 52.4°
  4. 4. Ratio

    Simplify: 6:6:4

    Answer: 3:3:2
  5. 5. Statistics

    Find the range of: 32, 10, 31, 21, 15

    Answer: 22

Tuesday 9 July 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 389 + 431

    Answer: 389 + 431 = 820
  2. 2. Algebra

    Solve: 9x = 45

    Answer: x = 5
  3. 3. Geometry

    Opposite = 11cm, hypotenuse = 12.7cm. Find the angle

    Answer: 60° (approximately)
  4. 4. Ratio

    Simplify: 6:18:9

    Answer: 2:6:3
  5. 5. Statistics

    Calculate the mean of: 36, 5, 45, 26, 37, 39, 31

    Answer: 31.3

Wednesday 10 July 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 34 + 23

    Answer: 1712
  2. 2. Algebra

    Solve: 9x = 63

    Answer: x = 7
  3. 3. Geometry

    Opposite = 12cm, adjacent = 19cm. Calculate the angle

    Answer: 32.3°
  4. 4. Ratio

    Find 25% of 191

    Answer: 47.75
  5. 5. Statistics

    A bag has 4 red and 7 blue balls. What is the probability of picking a red ball?

    Answer: 411

Thursday 11 July 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 99 + 73

    Answer: 99 + 73 = 172
  2. 2. Algebra

    Find the next term: 14, 21, 28, 35, ...

    Answer: 42
  3. 3. Geometry

    Find the perimeter of a right triangle with sides 3cm, 4cm, 5cm

    Answer: 12cm
  4. 4. Ratio

    Find 72% of 323

    Answer: 232.56
  5. 5. Statistics

    Find the range of: 14, 27, 25, 33, 5

    Answer: 28

Friday 12 July 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 46 + ? = 106

    Answer: 60
  2. 2. Algebra

    Simplify: 9x + 2x

    Answer: 11x
  3. 3. Geometry

    Opposite = 19cm, adjacent = 17cm. Calculate the angle

    Answer: 48.2°
  4. 4. Ratio

    Simplify: 6:10:4

    Answer: 3:5:2
  5. 5. Statistics

    Find the range of: 18, 27, 17, 46, 43

    Answer: 29