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Cornerstone · Grades 3–5 Keystones #1 6 May 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 6 May 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄8 + 2⁄8

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 3x - 19 = 11

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 6cm

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

    Divide 128 in the ratio 4:3:1

    Answer: 64, 48 and 16
  5. 5. Statistics Mean

    Calculate the mean of: 24, 34, 18, 13, 38, 45, 35, 45

    Answer: 31.5

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