Crisswords for math

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Across
  1. 3. +
  2. 5. a completed math statement
  3. 7. -
  4. 8. X
  5. 9. how high a shape is
  6. 11. a number left over
  7. 13. the measurement across an object
Down
  1. 1. Size of product
  2. 2. transforming a math sentence for
  3. 4. the force of gravity placed down on an object
  4. 6. %
  5. 10. ÷
  6. 12. =