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Lintel Jan 1 - 7 25 questions
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Monday 14 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 93. What are the numbers?

    Answer: 30, 31, and 32
  2. 2. Algebra

    Solve: 2x = 6

    Answer: x = 3
  3. 3. Geometry

    Adjacent = 15cm, hypotenuse = 23cm. Find the angle

    Answer: 49.3°
  4. 4. Ratio

    Simplify: 6:12:12

    Answer: 1:2:2
  5. 5. Statistics

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

    Answer: 1⁄3

Tuesday 15 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 81 + ? = 127

    Answer: 46
  2. 2. Algebra

    Solve: x⁄3 = 8.3333333333333

    Answer: x = 25
  3. 3. Geometry

    Opposite = 18cm, adjacent = 19cm. Calculate the angle

    Answer: 43.5°
  4. 4. Ratio

    Find 29% of 349

    Answer: 101.21
  5. 5. Statistics

    Calculate the mean of: 48, 26, 22, 27, 24, 25, 27

    Answer: 28.4

Wednesday 16 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 991 + 552

    Answer: 1543
  2. 2. Algebra

    Solve: x⁄2 = 3.5

    Answer: x = 7
  3. 3. Geometry

    Find perimeter: adjacent = 24cm, angle = 30°

    Answer: 65.6cm
  4. 4. Ratio

    Simplify: 20:16:8

    Answer: 5:4:2
  5. 5. Statistics

    Calculate the mean of: 41, 10, 45, 13, 39, 9, 18

    Answer: 25

Thursday 17 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 43 + ? = 150

    Answer: 107
  2. 2. Algebra

    Solve: 7x = 21

    Answer: x = 3
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 12cm

    Answer: 14.42cm
  4. 4. Ratio

    Find 26% of 257

    Answer: 66.82
  5. 5. Statistics

    A spinner has 5 red, 6 blue and 4 green sections. Probability of landing on red?

    Answer: 1⁄3

Friday 18 March 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 113, 170, and 72

    Answer: 355
  2. 2. Algebra

    Solve: 8x = 88

    Answer: x = 11
  3. 3. Geometry

    Opposite = 14cm, adjacent = 10cm. Calculate the angle

    Answer: 54.5°
  4. 4. Ratio

    Find 55% of 126

    Answer: 69.3
  5. 5. Statistics

    Find the range of: -15, -9, 7, 16, 44

    Answer: 59