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Lintel Sep 1 - 7 25 questions
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Monday 1 September 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.0087

    Answer: 8.7 × 10-3
  2. 2. Algebra

    Factorise: x² + 3x - 10

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

    Hypotenuse = 27cm, angle = 29°. Find adjacent side

    Answer: 23.6cm
  4. 4. Ratio

    Express the first part of 2:4 as a fraction in simplest form

    Answer: 13
  5. 5. Statistics

    Calculate the mean of: 22, 8, 47, 46, 7, 40, 23

    Answer: 27.6

Tuesday 2 September 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    18000000

    Answer: 1.8 × 107
  2. 2. Algebra

    Factorise: x² + 3x - 4

    Answer: (x + 4)(x - 1)
  3. 3. Geometry

    Adjacent = 11cm, angle = 35°. Find opposite

    Answer: 7.7cm
  4. 4. Ratio

    Divide 108 in the ratio 2:3:1

    Answer: 36, 54 and 18
  5. 5. Statistics

    Calculate the mean of: 12, 42, 8, 34, 9, 19, 26

    Answer: 21.4

Wednesday 3 September 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.061

    Answer: 6.1 × 10-2
  2. 2. Algebra

    Factorise: x² - 8x + 12

    Answer: (x - 6)(x - 2)
  3. 3. Geometry

    Hypotenuse = 40cm, angle = 40°. Find adjacent side

    Answer: 30.6cm
  4. 4. Ratio

    Express the first part of 6:3 as a fraction in simplest form

    Answer: 23
  5. 5. Statistics

    The mean of 5 numbers is 39. If 4 of them are 18, 24, 23, 16, what is the missing number?

    Answer: 114

Thursday 4 September 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00077

    Answer: 7.7 × 10-4
  2. 2. Algebra

    Factorise: x² - 7x + 12

    Answer: (x - 3)(x - 4)
  3. 3. Geometry

    Hypotenuse = 21cm, angle = 39°. Find adjacent side

    Answer: 16.3cm
  4. 4. Ratio

    £168.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £96.00
  5. 5. Statistics

    Calculate the mean of: 28, 46, 13, 8, 43, 23, 33

    Answer: 27.7

Friday 5 September 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    9600000

    Answer: 9.6 × 106
  2. 2. Algebra

    Factorise: x² + 2x - 15

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

    Adjacent = 16cm, angle = 49°. Find opposite

    Answer: 18.4cm
  4. 4. Ratio

    In ratio 1:3:2, what fraction is the second part?

    Answer: 36
  5. 5. Statistics

    The mean of 6 numbers is 24. If 5 of them are 41, 22, 43, 17, 31, what is the missing number?

    Answer: -10