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Cornerstone · Grades 3–5 Keystones #1 10 February 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 February 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 7⁄8 + 2⁄7

    Answer: 65⁄56
  2. 2. Algebra Two-step equations

    Solve: 6x + 10 = 28

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

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

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

    Share 56 in the ratio 4:3

    Answer: 32 and 24
  5. 5. Statistics Mean

    Find the mean of: 13, 19, 16, 14

    Answer: 15.5

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