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Cornerstone · Grades 3–5 Keystones #1 1 June 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 1 June 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 7⁄8 + 1⁄4

    Answer: 9⁄8
  2. 2. Algebra Two-step equations

    Solve: 8x - 8 = 24

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Share 72 in the ratio 2:1

    Answer: 48 and 24
  5. 5. Statistics Mean

    Calculate the mean of: 22, 11, 39, 47, 45, 46, 17

    Answer: 32.4

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