2. Real Numbers Rational Number s Non- integer s Intege rs Negative Integers Whole Number s Natural Numbers Zero Irrationa l Number s

3. Rational – real number which can be expressed as the ratio of two relatively prime integers, p/q, where p and q are integers and q is not equal to zero Irrational numbers – a real number which cannot be expressed as a ratio of two integers; non terminating, non repeating numbers (∏, square root of 17, square root of 11

4. Integer – union of the set of natural numbers, zero and the opposites or negatives of the natural numbers (negative integers) {…-2, -1, 0, +1, +2, …} Whole numbers – union of the set of natural numbers with the number zero and the set of natural numbers that is the subset of whole numbers (0, 1, 2, 3,…)

5. 1) -7 2) 15 3) 0.333 4) 8/2 ___ 5) - /15 6) Square root of nine 7) -7/10

6. 1) 12.45 2) 0.222 3) 13450 4) -12.023 5) -374.74957495 6) ∏ 7) -0.91 8) 1/3 9) 0 10) Square root of 121