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Cornerstone Jan 1 - 7 25 questions
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Monday 26 December 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 293 + 106

    Answer: 293 + 106 = 399
  2. 2. Algebra

    Solve: x + 6 = 13

    Answer: x = 7
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio

    Simplify: 12:12:15

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

    Calculate the range of: 32, 76, 104, 60, 94, 42

    Answer: 72

Tuesday 27 December 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    9000

    Answer: 9 × 103
  2. 2. Algebra

    Solve: 2x = 8

    Answer: x = 4
  3. 3. Geometry

    Calculate the distance between (7, 6) and (10, 10)

    Answer: 5
  4. 4. Ratio

    Find 29% of 206

    Answer: 59.74
  5. 5. Statistics

    Find the range of: 13, 32, 33, 19, 33

    Answer: 20

Wednesday 28 December 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 76 + 89

    Answer: 76 + 89 = 165
  2. 2. Algebra

    Solve: 6x = 72

    Answer: x = 12
  3. 3. Geometry

    Opposite = 10cm, adjacent = 18cm. Calculate the angle

    Answer: 29.1°
  4. 4. Ratio

    Simplify: 12:4:6

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

    Find the range of: 13, 14, 28, 26, 18

    Answer: 15

Thursday 29 December 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 234 + 749

    Answer: 234 + 749 = 983
  2. 2. Algebra

    Factorise: 12x + 20

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

    Find the area of a circle with radius 4cm

    Answer: 50.27cm²
  4. 4. Ratio

    Simplify: 8:12:12

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

    Calculate the range of: 44, 28, 23, 38, 52, 58

    Answer: 35

Friday 30 December 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 609 + 360

    Answer: 609 + 360 = 969
  2. 2. Algebra

    Find the next term: 24, 32, 40, 48, ...

    Answer: 56
  3. 3. Geometry

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

    Answer: 37.6°
  4. 4. Ratio

    Simplify: 24:20:16

    Answer: 6:5:4
  5. 5. Statistics

    Calculate the mean of: 8, 35, 29, 37, 20, 8, 5

    Answer: 20.3