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Bedrock Jan 1 - 7 25 questions
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Monday 14 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 41 + 34

    Answer: 41 + 34 = 75
  2. 2. Algebra

    Solve: x + 12 = 17

    Answer: x = 5
  3. 3. Geometry

    Opposite = 7cm, hypotenuse = 14cm. Find the angle

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

    Simplify the ratio 40:30

    Answer: 4:3
  5. 5. Statistics

    Find the mean of: 20, 17, 19, 14

    Answer: 17.5

Tuesday 15 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 52 × 52

    Answer: 54
  2. 2. Algebra

    Factorise: 21x + 24

    Answer: 3(7x + 8)
  3. 3. Geometry

    Convert 4kg to g

    Answer: 4000g
  4. 4. Ratio

    Simplify the ratio 20:10

    Answer: 2:1
  5. 5. Statistics

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

    Answer: 12

Wednesday 16 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 28 + 78

    Answer: 28 + 78 = 106
  2. 2. Algebra

    Simplify: 3x + 8x

    Answer: 11x
  3. 3. Geometry

    Opposite = 9cm, hypotenuse = 10.4cm. Find the angle

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

    Simplify the ratio 4:8

    Answer: 1:2
  5. 5. Statistics

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

    Answer: 16

Thursday 17 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4.7 + 3.3

    Answer: 4.7 + 3.3 = 8
  2. 2. Algebra

    Expand: 7(x + 7)

    Answer: 7x + 49
  3. 3. Geometry

    Find the area of a circle with radius 4cm

    Answer: 50.27cm²
  4. 4. Ratio

    Simplify the ratio 12:14

    Answer: 6:7
  5. 5. Statistics

    Find the mean of: 9, 8, 17, 18, 15

    Answer: 13.4

Friday 18 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 13 + 29

    Answer: 13 + 29 = 42
  2. 2. Algebra

    Simplify: 7x + 3x

    Answer: 10x
  3. 3. Geometry

    Opposite = 12cm, hypotenuse = 13.9cm. Find the angle

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

    Simplify the ratio 40:25

    Answer: 8:5
  5. 5. Statistics

    Find the range of: 23, 32, 32, 9, 19

    Answer: 23