April 20th crossword assignment

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Across
  1. 3. increases a number
  2. 5. where the two half of the parabola combine
  3. 7. finding what two numbers to put together
  4. 8. the highest point of the graph
  5. 9. math using letters
Down
  1. 1. making a number smaller using a minus sign
  2. 2. the lowest point of the graph
  3. 4. U shape graph
  4. 6. separates a number into = parts
  5. 10. when two or more numbers are combined to make a bigger number