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Bedrock Jan 1 - 7 25 questions
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Monday 7 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Round 972 to 1 significant figure

    Answer: 900
  2. 2. Algebra

    Find the next term: 14, 17, 20, 23, ...

    Answer: 26
  3. 3. Geometry

    Opposite = 8cm, hypotenuse = 16cm. Find the angle

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

    Simplify the ratio 18:12

    Answer: 3:2
  5. 5. Statistics

    Find the range of: 26, 23, 20, 7, 9

    Answer: 19

Tuesday 8 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 10 × 6

    Answer: 10 × 6 = 60
  2. 2. Algebra

    Find the next term: 23, 26, 29, 32, ...

    Answer: 35
  3. 3. Geometry

    Opposite = 15cm, hypotenuse = 21.2cm. Find the angle

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

    Calculate 25% of 190

    Answer: 47.5
  5. 5. Statistics

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

    Answer: 12

Wednesday 9 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    List the first 5 multiples of 9

    Answer: 9, 18, 27, 36, 45
  2. 2. Algebra

    Find the midpoint of (2, 3) and (17, 10)

    Answer: (9.5, 6.5)
  3. 3. Geometry

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

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

    Simplify the ratio 15:20

    Answer: 3:4
  5. 5. Statistics

    Find the mean of: 17, 20, 15, 11

    Answer: 15.75

Thursday 10 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 88 + 49

    Answer: 88 + 49 = 137
  2. 2. Algebra

    Find the next term: 15, 25, 35, 45, ...

    Answer: 55
  3. 3. Geometry

    Opposite = 6cm, hypotenuse = 6.9cm. Find the angle

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

    Simplify the ratio 6:12

    Answer: 1:2
  5. 5. Statistics

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

    Answer: 12

Friday 11 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 108 ÷ 9

    Answer: 108 ÷ 9 = 12
  2. 2. Algebra

    Find the next term: 11, 14, 17, 20, ...

    Answer: 23
  3. 3. Geometry

    Find the area of a right triangle with base 5cm and height 5cm

    Answer: 12.5cm²
  4. 4. Ratio

    Simplify the ratio 40:25

    Answer: 8:5
  5. 5. Statistics

    Find the mean of: 10, 11, 7

    Answer: 9.3333333333333