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

Five GCSE retrieval questions · 1 March 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄5 + 1⁄5

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

    Solve: 3x - 19 = -1

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

    Calculate the hypotenuse when a = 3cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 12.37cm
  4. 4. Ratio Sharing in a ratio

    Share 112 in the ratio 4:3

    Answer: 64 and 48
  5. 5. Statistics Mean

    Find the mean of: 4, 13, 13

    Answer: 10

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