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

Five GCSE retrieval questions · 5 January 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄4 + 5⁄7

    Answer: 41⁄28
  2. 2. Algebra Two-step equations

    Solve: 6x + 8 = 62

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

    Calculate the hypotenuse when a = 7cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 13.04cm
  4. 4. Ratio Sharing in a ratio

    Divide 144 in the ratio 3:2:4

    Answer: 48, 32 and 64
  5. 5. Statistics Mean

    Calculate the mean of: 46, 23, 33, 6, 31, 44

    Answer: 30.5

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