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Bedrock Jan 1 - 7 25 questions
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Monday 12 December 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    600000

    Answer: 6 × 105
  2. 2. Algebra

    Find the next term: 9, 19, 29, 39, ...

    Answer: 49
  3. 3. Geometry

    Opposite = 5cm, hypotenuse = 7.cm. Find the angle

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

    Simplify the ratio 12:20

    Answer: 3:5
  5. 5. Statistics

    Find the mean of: 17, 18, 15, 6, 15

    Answer: 14.2

Tuesday 13 December 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄10 + 2⁄10

    Answer: 4⁄5
  2. 2. Algebra

    Find the next term: 9, 15, 21, 27, ...

    Answer: 33
  3. 3. Geometry

    Opposite = 14cm, hypotenuse = 19.8cm. Find the angle

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

    Simplify the ratio 12:16

    Answer: 3:4
  5. 5. Statistics

    Find the mean of: 17, 4, 14, 8, 12

    Answer: 11

Wednesday 14 December 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 40 + 38

    Answer: 40 + 38 = 78
  2. 2. Algebra

    Factorise: 15x + 25

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

    Opposite = 11cm, hypotenuse = 22cm. Find the angle

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

    Simplify the ratio 40:25

    Answer: 8:5
  5. 5. Statistics

    What is the probability of rolling a 5 on a fair die?

    Answer: 1⁄6

Thursday 15 December 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 73 + 86

    Answer: 73 + 86 = 159
  2. 2. Algebra

    Find the next term: 15, 18, 21, 24, ...

    Answer: 27
  3. 3. Geometry

    Find the area of a right triangle with base 4cm and height 10cm

    Answer: 20cm²
  4. 4. Ratio

    Simplify the ratio 15:35

    Answer: 3:7
  5. 5. Statistics

    Find the mean of: 15, 12, 16, 16, 11

    Answer: 14

Friday 16 December 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄7 + 2⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Factorise: 8x + 6

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

    Convert 11m to cm

    Answer: 1100cm
  4. 4. Ratio

    Simplify the ratio 15:30

    Answer: 1:2
  5. 5. Statistics

    Find the mean of: 16, 6, 12, 9

    Answer: 10.75