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Bedrock Jan 1 - 7 25 questions
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Monday 17 February 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 35 + 15

    Answer: 45
  2. 2. Algebra

    Solve: x + 14 = 25

    Answer: x = 11
  3. 3. Geometry

    Opposite = 9cm, hypotenuse = 18cm. Find the angle

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

    Calculate 25% of 20

    Answer: 5
  5. 5. Statistics

    Find the mean of: 5, 18, 14

    Answer: 12.333333333333

Tuesday 18 February 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 31 + 47

    Answer: 31 + 47 = 78
  2. 2. Algebra

    Simplify: 7x + 8x

    Answer: 15x
  3. 3. Geometry

    Opposite = 10cm, hypotenuse = 20cm. Find the angle

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

    Simplify the ratio 14:12

    Answer: 7:6
  5. 5. Statistics

    What is the probability of rolling a 2 on a fair die?

    Answer: 16

Wednesday 19 February 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: -6 + (-1)

    Answer: -7
  2. 2. Algebra

    Factorise: 8x + 14

    Answer: 2(4x + 7)
  3. 3. Geometry

    Opposite = 10cm, hypotenuse = 20cm. Find the angle

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

    Simplify the ratio 16:24

    Answer: 2:3
  5. 5. Statistics

    What is the probability of getting heads when flipping a fair coin?

    Answer: 12

Thursday 20 February 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 15 + 35

    Answer: 45
  2. 2. Algebra

    Find the next term: 6, 12, 18, 24, ...

    Answer: 30
  3. 3. Geometry

    Find the area of a circle with radius 9cm

    Answer: 254.47cm²
  4. 4. Ratio

    Simplify the ratio 12:16

    Answer: 3:4
  5. 5. Statistics

    Find the mean of: 3, 12, 17, 7

    Answer: 9.75

Friday 21 February 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    40000

    Answer: 4 × 104
  2. 2. Algebra

    Solve: x + 7 = 21

    Answer: x = 14
  3. 3. Geometry

    Opposite = 5cm, hypotenuse = 5.8cm. Find the angle

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

    Simplify the ratio 25:35

    Answer: 5:7
  5. 5. Statistics

    Find the mean of: 8, 3, 19, 12, 6

    Answer: 9.6