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Bedrock Jan 1 - 7 25 questions
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Monday 18 October 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 41 + 41

    Answer: 41 + 41 = 82
  2. 2. Algebra

    Find the midpoint of (4, 2) and (14, 13)

    Answer: (9, 7.5)
  3. 3. Geometry

    Opposite = 15cm, hypotenuse = 30cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Simplify the ratio 24:21

    Answer: 8:7
  5. 5. Statistics

    Find the mean of: 12, 14, 4

    Answer: 10

Tuesday 19 October 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 37 + 98

    Answer: 37 + 98 = 135
  2. 2. Algebra

    Find the next term: 27, 33, 39, 45, ...

    Answer: 51
  3. 3. Geometry

    Opposite = 13cm, hypotenuse = 26cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Simplify the ratio 16:14

    Answer: 8:7
  5. 5. Statistics

    Find the mean of: 19, 10, 19, 2, 18

    Answer: 13.6

Wednesday 20 October 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 15 + 43

    Answer: 15 + 43 = 58
  2. 2. Algebra

    Factorise: 6x + 16

    Answer: 2(3x + 8)
  3. 3. Geometry

    Opposite = 5cm, hypotenuse = 10cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    In ratio 5:1, the difference between shares is 60. What are the shares?

    Answer: 75 and 15
  5. 5. Statistics

    Find the range of: 23, 17, 7, 9, 20

    Answer: 16

Thursday 21 October 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 95 + 66

    Answer: 95 + 66 = 161
  2. 2. Algebra

    Factorise: 9x + 21

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

    Opposite = 11cm, hypotenuse = 15.6cm. Find the angle

    Answer: 45° (approximately)
  4. 4. Ratio

    Simplify the ratio 9:24

    Answer: 3:8
  5. 5. Statistics

    Find the mean of: 17, 5, 17, 17, 16

    Answer: 14.4

Friday 22 October 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8 + (-6)

    Answer: 2
  2. 2. Algebra

    Solve: x + 6 = 18

    Answer: x = 12
  3. 3. Geometry

    Opposite = 5cm, hypotenuse = 10cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Calculate 50% of 94

    Answer: 47
  5. 5. Statistics

    Find the mean of: 7, 15, 18, 3, 12

    Answer: 11