math?!?!? (by Libby)

123456
Across
  1. 4. equal too
  2. 5. comparison of expressions
  3. 6. property distributing the first number to the others in multiplication
Down
  1. 1. a math phrase with no equal sign
  2. 2. a math phrase with an a equal sign and a specific variable
  3. 3. a letter in a math phrase, that represents what we don't know