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Cornerstone · Grades 3–5 Keystones #1 20 May 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 20 May 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 48 + 18

    Answer: 58
  2. 2. Algebra Two-step equations

    Solve: 4x + 5 = 21

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

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Divide 161 in the ratio 1:4:2

    Answer: 23, 92 and 46
  5. 5. Statistics Mean

    Find the mean of: 4, 15, 20, 6, 10

    Answer: 11