Basic Mathematics for College Students

PAYCHECKS Examine the items listed on the following paycheck stub. Then write two columns on your paper—one headed “positive” a ...

scaleto denote the brightness of objects in the sky. The brighter an object appears to an observer on Earth, the more negative i ...

GARDENING The illustration shows the depths at which the bottoms of various types of flower bulbs should be planted. (The symbo ...

To perform this addition, we must know how to add positive and negative integers. In this section, we develop rules to help us m ...

146 Chapter 2 The Integers The Language of Mathematics When writing additions that involve integers, write negative integers wit ...

In terms of money, if you lost $4 and then won $3, overall, you have lost $1 . Here are some observations about the process of a ...

148 Chapter 2 The Integers EXAMPLE (^3) Add: a. b. c. StrategyWe will use the rule for adding two integers that have different s ...

The properties of addition that were introduced in Section 1.2,Adding Whole Numbers,are also true for integers. 2.2 Adding Integ ...

There is another important fact about the operation of addition and 0. To illustrate it, we use the number line below to add 6 a ...

    At certain times, the addition property of opposites can be used to make addition of several integers easier. 2.2 Adding ...

152 Chapter 2 The Integers a. b. c. 2. 3. a. 5 b. c. 382 4. 5. 6. 6 8.50°F  9  73  494  3  14  9  9  5 ANSWERS TO SELF ...

a. Is the sum of two positive integers always positive? b. Is the sum of two negative integers always negative? c. Is the sum o ...

APPLICATIONS Use signed numbers to solve each problem. RECORD TEMPERATURES The lowest recorded temperatures for Michigan and Mi ...

HEALTH Find the point total for the six risk factors (shown with blue headings) on the medical questionnaire below. Then use th ...

  156 Chapter 2 The Integers   WRITING Is the sum of a positive and a negative number always positive? Explain why or why n ...

   Put more simply, this rule says that subtraction is the same as adding the opposite. After rewriting a subtraction as addi ...

c.We read as “seven minustwenty-three.” Thus, the number to be subtracted is 23. Subtracting 23 is the same as adding its opposi ...

Remember that any subtraction problem can be rewritten as an equivalent addition. We just add the opposite of the number that is ...

160 Chapter 2 The Integers 3 Solve application problems by subtracting integers. Subtraction finds the differencebetween two num ...

2.3 Subtracting Integers 161 Self Check 7 CRUDE OILOn Wednesday, the level of crude oil in a storage tank was 5 feet above stand ...