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Lintel May 24 - 30 25 questions
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Monday 24 May 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    9500000

    Answer: 9.5 × 106
  2. 2. Algebra

    Factorise: x² + x - 2

    Answer: (x + 2)(x - 1)
  3. 3. Geometry

    Hypotenuse = 40cm, angle = 37°. Find adjacent side

    Answer: 31.9cm
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 33, 29, 29, 49, 37, 40, 32, 8

    Answer: 32.1

Tuesday 25 May 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00048

    Answer: 4.8 × 10-4
  2. 2. Algebra

    Factorise: x² - 8x + 16

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

    Adjacent = 21cm, angle = 31°. Find opposite

    Answer: 12.6cm
  4. 4. Ratio

    Simplify the ratio 2m:200cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 5 numbers is 31. If 4 of them are 33, 18, 19, 48, what is the missing number?

    Answer: 37

Wednesday 26 May 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    42000

    Answer: 4.2 × 104
  2. 2. Algebra

    Factorise: x² - 8x + 12

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

    Hypotenuse = 24cm, angle = 51°. Find adjacent side

    Answer: 15.cm
  4. 4. Ratio

    £280.00 is shared between A and B in the ratio 3:5. How much does A receive?

    Answer: £105.00
  5. 5. Statistics

    The mean of 5 numbers is 36. If 4 of them are 28, 18, 20, 34, what is the missing number?

    Answer: 80

Thursday 27 May 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.00073

    Answer: 7.3 × 10-4
  2. 2. Algebra

    Factorise: x² + x - 42

    Answer: (x + 7)(x - 6)
  3. 3. Geometry

    Adjacent = 30cm, angle = 30°. Find opposite

    Answer: 17.3cm
  4. 4. Ratio

    Simplify the ratio 4m:400cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 35, 38, 44, 12, 26, 42, 38, 50

    Answer: 35.6

Friday 28 May 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    0.022

    Answer: 2.2 × 10-2
  2. 2. Algebra

    Factorise: x² + 2x - 8

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

    Adjacent = 11cm, angle = 54°. Find opposite

    Answer: 15.cm
  4. 4. Ratio

    £182.00 is shared between A and B in the ratio 4:3. How much does A receive?

    Answer: £104.00
  5. 5. Statistics

    Calculate the mean of: 19, 42, 11, 10, 25, 41

    Answer: 24.7