G10 S1 Maths Vocabulary 1

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Across
  1. 2. sequence - a sequence of numbers in which the difference between consecutive terms is constant with nth term a + (n-1)d
  2. 6. difference - the difference between consecutive terms in an arithmetic sequence
  3. 8. proportion - as one increases, the other increases at the same rate; the ratio between the two quantities is constant
  4. 11. (noun) the bottom number of a fraction
  5. 12. - a straight line connecting two points on a circle
  6. 13. set (null set) - the set with no members
  7. 14. - a collection of objects
  8. 15. proportion - as one increases the other decreases at the same rate; for example, as one quantity doubles, the other halves
  9. 16. - line from the centre of a circle to the circumference
Down
  1. 1. figure - the first non-zero digit in the number, counting from the left
  2. 3. - the longest side of a right-angled triangle
  3. 4. - the top number of a fraction
  4. 5. series - sum of an arithmetic sequence
  5. 7. triangle - a triangle with two sides of equal length and two equal angles
  6. 9. (plural) (singular index) (= powers) - a number that tells you how many times the given number is multiplied;
  7. 10. - a straight line that touches a circle at one point only
  8. 17. notation - used with recurring decimals that shows which numbers recur