Rational Numbers

123456789
Across
  1. 2. a number (not a fractional number) that can be positive, negative, or zero.
  2. 3. a property that states that a set of numbers is closed under any arithmetic operation
  3. 5. a number that is expressed as the ratio of two integers, where the denominator should not be equal to zero
  4. 7. a system to represent or express numbers.
  5. 8. a(b+c) = (ab) + (ac)
  6. 9. a + (b+c) = (a+b) + c
Down
  1. 1. all the positive integers from 1 till infinity
  2. 4. all the positive integers from 0 till infinity
  3. 6. a + b = b + a