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Cornerstone · Grades 3–5 Keystones #1 9 March 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 March 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄6 + 3⁄6

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

    Solve: 4x - 15 = 41

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 11.66cm
  4. 4. Ratio Sharing in a ratio

    Divide 196 in the ratio 3:1:3

    Answer: 84, 28 and 84
  5. 5. Statistics Mean

    Calculate the mean of: 44, 17, 44, 13, 46, 40

    Answer: 34

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