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Cornerstone Jan 1 - 7 25 questions
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Monday 1 January 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 68 + 51

    Answer: 68 + 51 = 119
  2. 2. Algebra

    Solve: 8x = 24

    Answer: x = 3
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio

    Find 38% of 123

    Answer: 46.74
  5. 5. Statistics

    Calculate the mean of: 22, 44, 23, 35, 49, 21, 37

    Answer: 33

Tuesday 2 January 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 980 + 527

    Answer: 980 + 527 = 1507
  2. 2. Algebra

    Solve: 9x = 90

    Answer: x = 10
  3. 3. Geometry

    Opposite = 11cm, adjacent = 9cm. Calculate the angle

    Answer: 50.7°
  4. 4. Ratio

    Find 85% of 226

    Answer: 192.1
  5. 5. Statistics

    Calculate the mean of: 9, 20, 28, 24, 6, 18

    Answer: 17.5

Wednesday 3 January 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 85 + 90

    Answer: 85 + 90 = 175
  2. 2. Algebra

    For y = x³, find y when x = 4

    Answer: y = 64
  3. 3. Geometry

    Find the area of a right triangle with base 10cm and height 7cm

    Answer: 35cm²
  4. 4. Ratio

    Simplify: 12:24:24

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

    Find the range of: 18, 12, 21, 30, 25

    Answer: 18

Thursday 4 January 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 80 + 38

    Answer: 80 + 38 = 118
  2. 2. Algebra

    Solve: x + 7 = 14

    Answer: x = 7
  3. 3. Geometry

    Find the area of a circle with radius 10cm

    Answer: 314.16cm²
  4. 4. Ratio

    Calculate 25% of 120

    Answer: 30
  5. 5. Statistics

    Calculate the mean of: 46, 18, 32, 34, 31, 12

    Answer: 28.8

Friday 5 January 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 553 + 583

    Answer: 553 + 583 = 1136
  2. 2. Algebra

    Expand: 4(2x + 4)

    Answer: 8x + 16
  3. 3. Geometry

    Opposite = 18cm, adjacent = 20cm. Calculate the angle

    Answer: 42°
  4. 4. Ratio

    Simplify the ratio 24:28

    Answer: 6:7
  5. 5. Statistics

    Find the mean of: 16, 4, 14, 2, 6

    Answer: 8.4