Back to School Items (Singular form)

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Across
  1. 3. used to carry everything
  2. 4. College Ruled or Wide Ruled
  3. 7. graphing, formulas, and addition
Down
  1. 1. primary form of hydration
  2. 2. ink form of writing
  3. 5. color by numbers
  4. 6. used usually in math