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Cornerstone · Grades 3–5 Keystones #1 3 October 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 3 October 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄5 + 3⁄5

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 4x + 12 = 56

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 6cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Divide 153 in the ratio 3:2:4

    Answer: 51, 34 and 68
  5. 5. Statistics Mean

    Find the mean of: 13, 7, 9, 8

    Answer: 9.25

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