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

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

  1. 1. Number Adding fractions

    Add: 78 + 16

    Answer: 2524
  2. 2. Algebra Two-step equations

    Solve: 4x + 9 = 33

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio Sharing in a ratio

    Share 56 in the ratio 4:3

    Answer: 32 and 24
  5. 5. Statistics Mean

    Calculate the mean of: 28, 42, 11, 38, 11, 43, 47

    Answer: 31.4