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Cornerstone · Grades 3–5 Keystones #1 9 March 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 March 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄5 + 3⁄8

    Answer: 31⁄40
  2. 2. Algebra Two-step equations

    Solve: 7x - 13 = 29

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 9cm

    Answer: 13.45cm
  4. 4. Ratio Sharing in a ratio

    Divide 174 in the ratio 1:2:3

    Answer: 29, 58 and 87
  5. 5. Statistics Mean

    Find the mean of: 10, 7, 8, 11

    Answer: 9

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