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Cornerstone Jan 1 - 7 25 questions
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Monday 8 April 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 25 + 15

    Answer: 35
  2. 2. Algebra

    Solve: x + 9 = 18

    Answer: x = 9
  3. 3. Geometry

    Opposite = 15cm, hypotenuse = 17.3cm. Find the angle

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

    Calculate 25% of 20

    Answer: 5
  5. 5. Statistics

    Find the range of: 15, 16, 10, 23, 22

    Answer: 13

Tuesday 9 April 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 14 + 23

    Answer: 1112
  2. 2. Algebra

    Solve: 7x = 56

    Answer: x = 8
  3. 3. Geometry

    Calculate the perimeter of a right triangle with sides 7cm and 6cm

    Answer: 22.2cm
  4. 4. Ratio

    Simplify the ratio 32:12

    Answer: 8:3
  5. 5. Statistics

    Calculate the mean of: 6, 30, 38, 15, 26, 32

    Answer: 24.5

Wednesday 10 April 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 609 + 817

    Answer: 609 + 817 = 1426
  2. 2. Algebra

    What is the next term? 7, 21, 63, 189, ...

    Answer: 567
  3. 3. Geometry

    Opposite = 12cm, hypotenuse = 13.9cm. Find the angle

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

    Simplify the ratio 20:35

    Answer: 4:7
  5. 5. Statistics

    Calculate the range of: 40, 36, 49, 62, 64, 75

    Answer: 39

Thursday 11 April 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 51 + 99

    Answer: 51 + 99 = 150
  2. 2. Algebra

    Factorise: 8x + 14

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

    Opposite = 14cm, adjacent = 17cm. Calculate the angle

    Answer: 39.5°
  4. 4. Ratio

    Simplify the ratio 40:35

    Answer: 8:7
  5. 5. Statistics

    Find the mean of: 9, 10, 12

    Answer: 10.333333333333

Friday 12 April 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is 2² × 3²?

    Answer: 36
  2. 2. Algebra

    Find the next term: 28, 33, 38, 43, ...

    Answer: 48
  3. 3. Geometry

    Opposite = 10cm, hypotenuse = 11.5cm. Find the angle

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

    Calculate 25% of 135

    Answer: 33.75
  5. 5. Statistics

    Find the mean of: 2, 2, 11

    Answer: 5