Maths term

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Across
  1. 3. Use of standard units to find out size or quantity in regard to
  2. 5. The amount of space a 3D solid occupies
  3. 6. Compares a part to a part
  4. 8. To join two or more numbers to get one number
  5. 9. A 2D shape with six sides
  6. 11. A mathematical operation where a number is added to itself a number of times
Down
  1. 1. Units that measure angles
  2. 2. A ratio of numbers or variables
  3. 4. Point the dot between the units digit and the tenths digit
  4. 7. The amount of space inside a shape
  5. 8. Two rays sharing a common endpoint. Angles are typically measured in degrees or radians
  6. 10. a quarter turn on 90 degree
  7. 12. How long something is