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Grade 3

Every edge counts

A wizard's stars hide edges in their valleys, and a blank inside a sum turns addition around. For a child practicing careful counting and working backwards.

  1. 1

    Count the edges

    In the Black Forest, the wizard Grendel is preparing an old ritual. His magic circle has 3 five-point stars and 2 six-point stars. To keep the ritual stable he must count the edges exactly. How many edges does the magic circle have in total?
  2. 2

    Fill in the blank

    2589+□=91242589 + \square = 9124