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Cornerstone · Grades 3–5 Keystones #1 27 March 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 March 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄6 + 2⁄3

    Answer: 7⁄6
  2. 2. Algebra Two-step equations

    Solve: 3x + 7 = 19

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 8.54cm
  4. 4. Ratio Sharing in a ratio

    Divide 192 in the ratio 3:4:1

    Answer: 72, 96 and 24
  5. 5. Statistics Mean

    Calculate the mean of: 13, 13, 12, 21, 16, 24, 44, 26. Give your answer to 2 decimal places

    Answer: 21.13

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