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Cornerstone · Grades 3–5 Keystones #1 11 March 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 11 March 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄5 + 3⁄5

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 5x + 3 = 48

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 9cm and b = 6cm

    Answer: 10.82cm
  4. 4. Ratio Sharing in a ratio

    Divide 161 in the ratio 3:2:2

    Answer: 69, 46 and 46
  5. 5. Statistics Mean

    Calculate the mean of: 37, 49, 5, 25, 29, 43, 41, 34

    Answer: 32.9

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