pre-algebra

123456
Across
  1. 3. a letter that represents a number.
  2. 5. the sum of the lengths of the sides of a polygon.
  3. 6. number multiplied to give a product; the product divided by the factors give a 0 remainder.
Down
  1. 1. the answer in addition.
  2. 2. the answer in subtraction.
  3. 4. the number of squares needed to cover a closed figure.