INTEGERS

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Across
  1. 5. All natural numbers, their negatives including 0
  2. 6. Operation used to find the quotient of integers.
  3. 8. Identity element of multiplication.
  4. 10. The symbol used before a negative integer.
Down
  1. 1. The operation used to find the sum of integers.
  2. 2. This integer has no sign.
  3. 3. Sum of two integers is an Integer.
  4. 4. Zero on the number line is called _______.
  5. 7. Integers to the left of zero on number line.
  6. 9. The symbol used before a positive integer.