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Lintel Jan 1 - 7 25 questions
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Monday 20 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 422 + 628

    Answer: 422 + 628 = 1050
  2. 2. Algebra

    Solve: 7x = 105

    Answer: x = 15
  3. 3. Geometry

    Opposite = 13cm, adjacent = 19cm. Calculate the angle

    Answer: 34.4°
  4. 4. Ratio

    Simplify: 4:12:10

    Answer: 2:6:5
  5. 5. Statistics

    A bag has 3 red and 7 blue balls. What is the probability of picking a red ball?

    Answer: 310

Tuesday 21 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1.32 + 17.22 + 0.792

    Answer: 1.32 + 17.22 + 0.792 = 19.332
  2. 2. Algebra

    Solve: x4 = 3

    Answer: x = 12
  3. 3. Geometry

    Adjacent = 20cm, hypotenuse = 30cm. Find the angle

    Answer: 48.2°
  4. 4. Ratio

    Simplify: 9:15:18

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

    Find the range of: 21, 29, 13, -15, 4

    Answer: 44

Wednesday 22 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 959 + 326

    Answer: 959 + 326 = 1285
  2. 2. Algebra

    Factorise fully: 15x² + 10x

    Answer: 5x(3x + 2)
  3. 3. Geometry

    Opposite = 11cm, adjacent = 16cm. Calculate the angle

    Answer: 34.5°
  4. 4. Ratio

    Simplify: 16:16:24

    Answer: 2:2:3
  5. 5. Statistics

    Find the range of: 30, -9, -6, 18, -23

    Answer: 53

Thursday 23 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 996 + 625

    Answer: 1621
  2. 2. Algebra

    Solve: 4x = 16

    Answer: x = 4
  3. 3. Geometry

    Adjacent = 20cm, hypotenuse = 28cm. Find the angle

    Answer: 44.4°
  4. 4. Ratio

    Find 78% of 492

    Answer: 383.76
  5. 5. Statistics

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

    Answer: 12

Friday 24 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 992 + 574

    Answer: 1566
  2. 2. Algebra

    Solve: 4x = 52

    Answer: x = 13
  3. 3. Geometry

    Adjacent = 14cm, hypotenuse = 31cm. Find the angle

    Answer: 63.2°
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

    Find the range of: -10, -10, 12, 24, -16

    Answer: 40