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Cornerstone · Grades 3–5 Keystones #1 15 March 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 15 March 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄4 + 2⁄8

    Answer: 1⁄1
  2. 2. Algebra Two-step equations

    Solve: 7x + 13 = 34

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

    Find the hypotenuse of a right triangle with sides 20cm and 21cm

    Answer: 29cm
  4. 4. Ratio Sharing in a ratio

    Share 84 in the ratio 3:4

    Answer: 36 and 48
  5. 5. Statistics Mean

    Find the mean of: 11, 15, 7

    Answer: 11

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