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Lintel Jan 1 - 7 25 questions
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Monday 4 December 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 35 + ? = 147

    Answer: 112
  2. 2. Algebra

    Solve: 8x = 40

    Answer: x = 5
  3. 3. Geometry

    Opposite = 11cm, adjacent = 15cm. Calculate the angle

    Answer: 36.3°
  4. 4. Ratio

    Find 83% of 287

    Answer: 238.21
  5. 5. Statistics

    Find the range of: 15, 21, -17, -15, 29

    Answer: 46

Tuesday 5 December 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 997 + 781

    Answer: 1778
  2. 2. Algebra

    Solve: x4 = 9

    Answer: x = 36
  3. 3. Geometry

    Adjacent = 16cm, hypotenuse = 22cm. Find the angle

    Answer: 43.3°
  4. 4. Ratio

    Simplify: 10:8:8

    Answer: 5:4:4
  5. 5. Statistics

    A bag has 6 red and 4 blue balls. What is the probability of picking a red ball?

    Answer: 35

Wednesday 6 December 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 480 + 520

    Answer: 480 + 520 = 1000
  2. 2. Algebra

    Factorise fully: 35x² + 15x

    Answer: 5x(7x + 3)
  3. 3. Geometry

    Opposite = 17cm, adjacent = 9cm. Calculate the angle

    Answer: 62.1°
  4. 4. Ratio

    Find 53% of 121

    Answer: 64.13
  5. 5. Statistics

    A bag has 5 red and 5 blue balls. What is the probability of picking a red ball?

    Answer: 12

Thursday 7 December 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 129. What are the numbers?

    Answer: 42, 43, and 44
  2. 2. Algebra

    Factorise: 8x² + 3x

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

    Adjacent = 30cm, hypotenuse = 41cm. Find the angle

    Answer: 43°
  4. 4. Ratio

    Simplify: 16:20:20

    Answer: 4:5:5
  5. 5. Statistics

    Find the range of: -18, 47, 22, 44, -23

    Answer: 70

Friday 8 December 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 995 + 510

    Answer: 1505
  2. 2. Algebra

    Factorise: 2x² + 2x

    Answer: 2x(x + 1)
  3. 3. Geometry

    Adjacent = 30cm, hypotenuse = 39cm. Find the angle

    Answer: 39.7°
  4. 4. Ratio

    Simplify: 20:12:24

    Answer: 5:3:6
  5. 5. Statistics

    A spinner has 4 red, 6 blue and 2 green sections. Probability of landing on red?

    Answer: 13