Lesson 2 Key Vocab - Use directed number with algebra

123456
Across
  1. 1. to make simple or simpler
  2. 4. to put numbers where the letters are in algebra
  3. 6. numbers with a direction and size (think number lines)
Down
  1. 2. a number greater than zero
  2. 3. a number less than zero
  3. 5. to find a solution, explanation, or answer