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Cornerstone Jan 1 - 7 25 questions
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Monday 25 December 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is 6.1 + 2.22 + 0.83?

    Answer: 6.1 + 2.22 + 0.83 = 9.15
  2. 2. Algebra

    Expand: 8(x + 6)

    Answer: 8x + 48
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 9cm

    Answer: 10.82cm
  4. 4. Ratio

    Simplify: 9:15:12

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

    Calculate the mean of: 7, 43, 34, 43, 37, 11, 37, 30

    Answer: 30.3

Tuesday 26 December 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    300000

    Answer: 3 × 105
  2. 2. Algebra

    Solve: x + 13 = 30

    Answer: x = 17
  3. 3. Geometry

    Find the area of a circle with radius 7cm

    Answer: 153.94cm²
  4. 4. Ratio

    Find 31% of 244

    Answer: 75.64
  5. 5. Statistics

    Calculate the range of: 63, 61, 28, 52, 50, 42

    Answer: 35

Wednesday 27 December 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 45 + 13

    Answer: 1715
  2. 2. Algebra

    Solve: 5x = 30

    Answer: x = 6
  3. 3. Geometry

    Calculate the area of a circle with diameter 11cm

    Answer: 95.03cm²
  4. 4. Ratio

    Simplify: 4:12:10

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

    Find the mean of: 18, 3, 12, 11

    Answer: 11

Thursday 28 December 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 67 + ? = 164

    Answer: 97
  2. 2. Algebra

    Solve: 4x = 40

    Answer: x = 10
  3. 3. Geometry

    Calculate the distance between (4, 5) and (7, 9)

    Answer: 5
  4. 4. Ratio

    Find 17% of 419

    Answer: 71.23
  5. 5. Statistics

    Find the mean of: 6, 7, 16

    Answer: 9.6666666666667

Friday 29 December 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 72 × 75

    Answer: 77
  2. 2. Algebra

    Solve: x + 10 = 26

    Answer: x = 16
  3. 3. Geometry

    Find the distance between (5, 4) and (9, 11)

    Answer: 8.06
  4. 4. Ratio

    Simplify: 6:12:9

    Answer: 2:4:3
  5. 5. Statistics

    Calculate the mean of: 39, 8, 43, 44, 44, 43, 6, 45

    Answer: 34