1. 1.2 Properties of Real Numbers

2. Sets Of Numbers – Naturals Numbers: counting numbers {1, 2, 3, 4…} – Wholes Numbers: counting numbers and zero {0, 1, 2, 3,…) – Integers Numbers: Positive or negative natural numbers or zero {…-3, -2, -1, 0, 1, 2, 3…}

3. – Rational Numbers: Any number which can be written as a fraction. Decimal form is either a terminating or repeating decimal. {1/2, 2.575757…-3, √4, 0} – Irrationals Numbers: A non-terminating and non-repeating decimal. { } – Real Numbers: All rationals and irrationals numbers.

4. A.Classify numbers: Name the sets of numbers to which each number belongs. 1. -82. 25 3. 6.84. 5. 6. 7.

5. Combine like terms only—different coefficients with same variables and exponents Ex. of Like Terms: 3x; 5x Ex. of Unlike Terms: 3x; 5xy C. Simplify and expression 1. 2. 3.