Goal: Graph, order and use real numbers

Order numbers from least to greatest:  , 0.09, 0.192, 0.79  , 3.3, 0.3, 3.13  3. ½, 3/5, ¼, 5/16

 Real number line: real numbers are pictured as points. The numbers increase from left to right.  Origin: the point labeled 0 on a real number line.  Graph (of a number): the point on a number line that corresponds to a real number  Coordinate (of a point): the number that corresponds to a point on a number line

 A number line can be used to order real numbers.  The inequality symbols, > can be used to compare two numbers

 Graph the numbers -1 and -4. The compare them using the symbol.

 Opposite (additive inverse): of any number a is –a  Reciprocal (multiplicative inverse): of any nonzero number a is 1/a

 Show how you can use the distributive property to evaluate 5 ● 203.

 Subtraction is defined as adding the opposite.  Division is defined as multiplying by the reciprocal.

 A. Find the difference of 4 and -9.  B. Find the quotient of - 15 and 1/3.

 A. What is the quotient of -16 and ½ ?  B. What is the product of -5 and 8?

p , 30-38, 42-49, 51-54, odd