Mathematics vocabulary

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Across
  1. 1. Maths that looks at space
  2. 3. An angle less than ninety degrees
  3. 5. An opposite side
  4. 7. A line touching a curve at only one point
  5. 8. Using simple operations to compute numbers
  6. 9. The top number of the fraction
  7. 12. The bottom line of a fraction
  8. 13. A number that divides a number exactly
  9. 14. A whole number
  10. 15. Maths that uses letters to represent numbers
  11. 17. The angle between a line of direction and north
  12. 19. The distance from the centre of a circle to the circumference
Down
  1. 2. Where two maths expressions are equal
  2. 4. An outside angle
  3. 6. A line at right angles to another line
  4. 10. Collecting, studying and analysing numbers
  5. 11. A unit of an angle
  6. 16. Surface measurement
  7. 17. To cut into two equal parts
  8. 18. A number larger than one and divisible only by itself and one