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Cornerstone · Grades 3–5 Keystones #1 22 May 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 22 May 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄12 + 4⁄12

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 2x - 8 = 16

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio Sharing in a ratio

    Divide 232 in the ratio 3:1:4

    Answer: 87, 29 and 116
  5. 5. Statistics Mean

    Calculate the mean of: 44, 38, 38, 11, 38, 12, 46

    Answer: 32.4

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