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Bedrock Jan 1 - 7 25 questions
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Monday 14 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1 + 4.2

    Answer: 1 + 4.2 = 5.2
  2. 2. Algebra

    Find the next term: 10, 20, 30, 40, ...

    Answer: 50
  3. 3. Geometry

    Opposite = 15cm, hypotenuse = 17.3cm. Find the angle

    Answer: 60° (approximately)
  4. 4. Ratio

    Simplify the ratio 12:20

    Answer: 3:5
  5. 5. Statistics

    Find the mean of: 9, 3, 13, 8, 18

    Answer: 10.2

Tuesday 15 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 21 + 42

    Answer: 21 + 42 = 63
  2. 2. Algebra

    Solve: x + 9 = 19

    Answer: x = 10
  3. 3. Geometry

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

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

    Simplify the ratio 21:12

    Answer: 7:4
  5. 5. Statistics

    Find the mean of: 15, 7, 17

    Answer: 13

Wednesday 16 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄6 + 2⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Factorise: 21x + 12

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

    Opposite = 13cm, hypotenuse = 18.4cm. Find the angle

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

    Calculate 50% of 194

    Answer: 97
  5. 5. Statistics

    Find the mean of: 18, 17, 8, 10

    Answer: 13.25

Thursday 17 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: -7 + (-1)

    Answer: -8
  2. 2. Algebra

    Find the next term: 18, 23, 28, 33, ...

    Answer: 38
  3. 3. Geometry

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

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

    Simplify the ratio 25:20

    Answer: 5:4
  5. 5. Statistics

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

    Answer: 1⁄6

Friday 18 June 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄9 + 3⁄9

    Answer: 5⁄9
  2. 2. Algebra

    Simplify: 4x + 9x

    Answer: 13x
  3. 3. Geometry

    Find the area of a circle with radius 9cm

    Answer: 254.47cm²
  4. 4. Ratio

    Simplify the ratio 8:10

    Answer: 4:5
  5. 5. Statistics

    Find the mean of: 8, 5, 19

    Answer: 10.666666666667