Maths

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Across
  1. 5. is the extent to which an event is likely to occur
  2. 8. a number that cannot be expressed as a fraction
  3. 9. part of maths used to represent numbers using letters
Down
  1. 1. writing a number as a product of several numbers
  2. 2. study of geometry using the coordinate points
  3. 3. collecting and analysing numerical data in large quantities
  4. 4. an expression of more than two algebraic terms
  5. 6. gives the area of a triangle when all 3 sides are given
  6. 7. a diagram showing the relation between variable quantities