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Cornerstone · Grades 3–5 Keystones #1 25 January 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 25 January 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄10 + 7⁄10

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

    Solve: 4x + 9 = 33

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 9.22cm
  4. 4. Ratio Sharing in a ratio

    Divide 84 in the ratio 1:1:4

    Answer: 14, 14 and 56
  5. 5. Statistics Mean

    Find the mean of: 7, 10, 1, 6, 11

    Answer: 7

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