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Lintel Jan 1 - 7 25 questions
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Monday 5 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 992 + 758

    Answer: 1750
  2. 2. Algebra

    Factorise fully: 28x² + 16x

    Answer: 4x(7x + 4)
  3. 3. Geometry

    Opposite = 17cm, adjacent = 19cm. Calculate the angle

    Answer: 41.8°
  4. 4. Ratio

    Simplify the ratio 4m:400cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 48, 12, 35, 25, 34, 22

    Answer: 29.3

Tuesday 6 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 264, 137, and 140

    Answer: 541
  2. 2. Algebra

    Solve: x3 = 12.333333333333

    Answer: x = 37
  3. 3. Geometry

    Adjacent = 24cm, hypotenuse = 42cm. Find the angle

    Answer: 55.2°
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 24, 5, 38, 24, 16, 15, 15, 28

    Answer: 20.6

Wednesday 7 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 991 + 758

    Answer: 1749
  2. 2. Algebra

    Solve: 7x = 84

    Answer: x = 12
  3. 3. Geometry

    Opposite = 8cm, adjacent = 20cm. Calculate the angle

    Answer: 21.8°
  4. 4. Ratio

    Calculate 17.3% of 563

    Answer: 97.4
  5. 5. Statistics

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

    Answer: 29

Thursday 8 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 999 + 527

    Answer: 1526
  2. 2. Algebra

    Solve: 4x = 28

    Answer: x = 7
  3. 3. Geometry

    Opposite = 11cm, adjacent = 20cm. Calculate the angle

    Answer: 28.8°
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    Find the range of: 39, -22, -19, -15, 14

    Answer: 61

Friday 9 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: x8 × x3

    Answer: x11
  2. 2. Algebra

    Solve: x7 = 4.8571428571429

    Answer: x = 34
  3. 3. Geometry

    Adjacent = 19cm, hypotenuse = 37cm. Find the angle

    Answer: 59.1°
  4. 4. Ratio

    Calculate 19% of 254

    Answer: 48.26
  5. 5. Statistics

    A bag has 3 red and 3 blue balls. What is the probability of picking a red ball?

    Answer: 12