Math

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Across
  1. 1. / inventor of calculus
  2. 4. something you use to solve numbers
  3. 6. 235 X 58
  4. 8. 110 X 50
  5. 9. x+50=220
Down
  1. 2. all sides are equal
  2. 3. 90 divided 30
  3. 5. x+44=80
  4. 6. 195 X 2
  5. 7. x+225=650