3.1: Objectives
Learning Objectives
After completing this chapter, you should
Signed Numbers (Section 3.2)
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be familiar with positive and negative numbers and with the concept of opposites
Absolute Value (Section 3.3)
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understand the geometric and algebraic definitions of absolute value
Addition of Signed Numbers (Section 3.4)
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be able to add numbers with like signs and unlike signs
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understand addition with zero
Subtraction of Signed Numbers (Section 3.5)
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understand the definition of subtraction
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be able to subtract signed numbers
Multiplication and Division of Signed Numbers (Section 3.6)
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be able to multiply and divide signed numbers
Negative Exponents (Section 3.7)
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understand the concepts of reciprocals and negative exponents
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be able to work with negative exponents
Scientific Notation (Section 3.8)
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be able to convert a number from standard form to scientific form and from scientific form to standard form
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be able to work with numbers in scientific notation