Scientific Notation (Get your Bell Work Books) (New Unit #3, Chapter #3) https://www.youtube.com/watch?v=Q_klLmTSyyw https://www.youtube.com/watch?v=AWof6knvQwE.

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Presentation transcript:

Scientific Notation (Get your Bell Work Books) (New Unit #3, Chapter #3) https://www.youtube.com/watch?v=Q_klLmTSyyw https://www.youtube.com/watch?v=AWof6knvQwE

Bell Work Order Numbers from LEAST to GREATEST

Unit 2 Chapter 3 Real Numbers Why is it helpful to write numbers in different ways? Pg. 163

P-E-M-D-A-S Please Excuse My Dear Aunt Sally Parentheses Exponents Multiply and Divide Add and Subtract

Are You Ready? Example 1 Example 2 60 Find Find Prime Factorization of 60 Prime Number - A number whose factors are only 1 and itself. (DO NOT WRITE THE #1)

Questions? Simplify Prime Factorization 24 100 - 42

Vocabulary Startup Rational Numbers Are… Numbers that can be written as a comparison of two integers, expressed as a fraction (division) Rational Numbers Percent Decimal Fraction Mixed Numbers 19% .32

Lesson #1 Pg. 167 http://www.youtube.com/watch?v=m94WTZP14SA Rational Numbers Lesson #1 Pg. 167 http://www.youtube.com/watch?v=m94WTZP14SA

Real Number System Natural numbers are the counting numbers: 1, 2, 3, …+∞ Whole numbers are the natural numbers and zero: 0, 1, 2, 3, …+∞ Integers are whole numbers and their opposites: -∞…, –3, –2, –1, 0, 1, 2, 3, …+∞ Rational numbers (Repeating or Terminating decimals) can be expressed in the form , where a and b are both integers and b ≠ 0: , , Irrational Numbers Non-Repeating, Non-Terminating decimals

Repeating and Terminating Decimals The decimal form of a rational number is called a repeating decimal. If the repeating digit is zero, then the decimal is a terminating decimal. Rational Number Repeating Decimal Terminating / Repeating 0.5000… Terminating 0.4000… Terminating 0.833… Repeating 0.8 3

Real Number System REAL NUMBERS RATIONAL NUMBERS INTEGERS IRRATIONAL NUMBERS INTEGERS WHOLE NUMBERS NATURAL NUMBERS

Examples Write 0.45 as a fraction. Write as a fraction.

Examples Write as a fraction Write as a fraction.

Group 1: pg. 171-172 (1-13, 19) Group 2: pg. 171-172 (1-13, 14-16, 19) Homework Group 1: pg. 171-172 (1-13, 19) Group 2: pg. 171-172 (1-13, 14-16, 19)