Mathematics

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Across
  1. 2. To split into equal parts
  2. 4. Shape with three sides
  3. 5. To take one number away from another
  4. 7. The number before one
  5. 8. Shape with four equal sides
  6. 10. Shape like an egg
Down
  1. 1. A round shape
  2. 3. Part of a whole
  3. 6. A long box shape
  4. 9. Twice a number