Maths

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Across
  1. 3. away what does this - sign mean
  2. 4. what does the line with two dots mean
  3. 5. what is an 8 sided shape called
  4. 6. what is an 4 sided shape called
Down
  1. 1. what does this € mean
  2. 2. what does the plus sign mean
  3. 3. what is an 3 sided shape called