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Lintel Jan 1 - 7 25 questions
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Monday 19 September 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.075

    Answer: 7.5 × 10^-2
  2. 2. Algebra

    Solve: x6 = 5.1666666666667

    Answer: x = 31
  3. 3. Geometry

    Opposite = 15cm, adjacent = 14cm. Calculate the angle

    Answer: 47°
  4. 4. Ratio

    Simplify: 16:8:16

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

    A spinner has 6 red, 6 blue and 2 green sections. Probability of landing on red?

    Answer: 37

Tuesday 20 September 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: x7 × x6

    Answer: x13
  2. 2. Algebra

    Solve: x6 = 6

    Answer: x = 36
  3. 3. Geometry

    Adjacent = 16cm, hypotenuse = 23cm. Find the angle

    Answer: 45.9°
  4. 4. Ratio

    Simplify: 24:20:24

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

    Calculate the mean of: 33, 10, 22, 11, 20, 48, 33

    Answer: 25.3

Wednesday 21 September 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 36 + 45 + 14

    Answer: 3120
  2. 2. Algebra

    Expand: 6(6x + 2)

    Answer: 36x + 12
  3. 3. Geometry

    Opposite = 20cm, adjacent = 14cm. Calculate the angle

    Answer: 55°
  4. 4. Ratio

    Simplify: 15:12:6

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

    A spinner has 4 red, 6 blue and 6 green sections. Probability of landing on red?

    Answer: 14

Thursday 22 September 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 88 + ? = 197

    Answer: 109
  2. 2. Algebra

    Solve: 5x = 65

    Answer: x = 13
  3. 3. Geometry

    Find c if a = 16cm and b = 17cm in a right triangle

    Answer: 23.3cm
  4. 4. Ratio

    Simplify: 8:8:16

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

    A spinner has 2 red, 4 blue and 3 green sections. Probability of landing on red?

    Answer: 29

Friday 23 September 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 24 + 12 + 35

    Answer: 85
  2. 2. Algebra

    Factorise fully: 20x² + 8x

    Answer: 4x(5x + 2)
  3. 3. Geometry

    Opposite = 11cm, adjacent = 14cm. Calculate the angle

    Answer: 38.2°
  4. 4. Ratio

    Simplify: 10:4:10

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

    Calculate the mean of: 18, 36, 6, 30, 19, 16, 24, 5

    Answer: 19.3