Integers

12345678
Across
  1. 4. Johnny descended 2 feet then 2 more feet then 3 feet
  2. 5. The mean of 3, 4, 5, 6 is an integer (yes/naw)
  3. 6. The number -5 + -6 + -2 is an integer (yes/naw)
  4. 7. This integer is neither positive nor negative
  5. 8. These integers are to the right of zero on the number line
Down
  1. 1. Integers cannot contain these after simplification
  2. 2. These integers are to the left of zero on the number line
  3. 3. integers cannot contain these after simplification