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

Five GCSE retrieval questions · 5 May 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄5 + 4⁄8

    Answer: 11⁄10
  2. 2. Algebra Two-step equations

    Solve: 5x - 18 = 7

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio Sharing in a ratio

    Share 50 in the ratio 4:1

    Answer: 40 and 10
  5. 5. Statistics Mean

    Calculate the mean of: 46, 25, 21, 36, 19, 48

    Answer: 32.5

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