maths crossword puzzle

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Across
  1. 2. the symbol for this is ∇, different types of slopes.
  2. 5. a special ratio in which the two terms are in different units.
  3. 6. a branch of mathematics dealing with symbols and the rules for manipulating those symbols.
  4. 7. making something larger.
  5. 9. putting an expression into brackets.
  6. 10. making a problem easier.
Down
  1. 1. is an algebraic equation of the form y=mx+b.
  2. 3. an arithmetic value used to represent quantity.
  3. 4. a relative value indicating hundredth parts of any quantity.
  4. 8. a letter in place of a number.