integer operations

12345678
Across
  1. 2. value /the value of a number but it will always be positive
  2. 5. /the positive and negative numbers on either side of zero
  3. 6. / the number on the left side of zero on the number line
  4. 8. / you use tic tac toe to solve but you have to divide
Down
  1. 1. /you use tic tac toe to solve and you have to multiply.
  2. 3. / you use keep change change to solve equations
  3. 4. /the numbers on the right side of the number line after zero
  4. 7. / you use zero pairs to solve the equations