V OCABULARY Absolute value Additive inverse Positive number Frequency Integers Irrational number
V OCABULARY Line plot Measures of central tendency Natural number Negative number opposites Perfect square
V OCABULARY Principal square root Probability Rational number Stem and Leaf Plot Real number Infinity Square root Whole number
T REE MAP R EAL N UMBER S YSTEM
T RUE OR F ALSE ? If a number is rational, then it is a whole number. If a number is natural, then it is a whole number. If a number is an integer, then it is a rational number. All natural numbers are integers.
T RUE OR F ALSE ? All rational numbers are real numbers. All irrational numbers are whole numbers. All irrational numbers are decimals. All decimals are irrational numbers. All fractions are irrational numbers.
R EAL N UMBERS Real Numbers Questions Real Numbers Chart Homework: The Real Number System ½ worksheet
2-1 Rational Numbers on a Number Line and Absolute Value (worksheet in class in small collaborative groups) 2-2 Adding and Subtractive Rational Numbers (worksheet in class in small collaborative groups) 2-3/2-4 Multiplying and Dividing Rational Numbers (worksheet in class in small collaborative groups- finish for homework) This section continued on the next slide
S IMPLIFYING E XPRESSIONS Distribute the multiplication OR the division to each piece Combine like terms Examples:
2-6 S IMPLE P ROBABILITY AND O DDS Probability: What you want What you got P(6)= P(even)= P(less than 5)= Odds What you want What you don’t want Odds(6)= Odds(even)= Odds(less than 5)=
P ROBABILITY /O DDS P. 99 #14-48 EVENS
2-7 S QUARE R OOTS AND R EAL N UMBER ( LAST SECTION )
T EST S TUDY G UIDE 2-1 & 2-7 True or false questions about the real number system (4) 2-1 & 2-7 Identify which set numbers belong to in the real number system (4) 2-1 Find absolute value within expressions (4) 2-3 & 2-4 Multiplying and Dividing Rational Numbers (simplifying expressions) (6) 2-6 Simple Probability and Odds (4 of each) 2-7 Find square roots (5 of each) 2-7 Write sets of numbers in order from least to greatest (3) 2-1 & 2-7
T EST S TUDY G UIDE p. 823 lesson 2-1 #11-14 lesson 2-3 #13-18 p. 824 lesson 2-4 #13-20 lesson 2-6 #7-18 p. 825 lesson 2-7 #1-16, then order #9 – 12 from least to greatest, then order #13 – 16 from least to greatest