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Cornerstone · Grades 3–5 Keystones #1 19 July 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 19 July 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄3 + 3⁄6

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

    Solve: 2x - 18 = 10

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

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Divide 176 in the ratio 1:2:1

    Answer: 44, 88 and 44
  5. 5. Statistics Mean

    Calculate the mean of: 6, 48, 47, 8, 37, 22, 10

    Answer: 25.4

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