Basic Mathematics for College Students

36 Chapter 1 Whole Numbers

Solution

We will write the steps of the solution in horizontal form.

27  16  5  11  5 Working left to right, do the subtraction first: 27  16 11.

 16 Now do the addition.

1. 37 2.1,141 3. 47 4.6,378 5.63,859 6.The subtraction is incorrect.
   7.52,000 8.1,100 lb 9.180 lb 10. 54

ANSWERS TO SELF CHECKS

VOCABULARY

Fill in the blanks.

1. In the subtraction problem shown below, label the
   minuend, subtrahend,and the difference.

(^25)   (^10)   (^15) 

2. If the subtraction of the digits in any place value
   column requires that we subtract a larger digit from a
   smaller digit, we must or regroup.


3. The words fall, lose, reduce,and decrease often indicate
   the operation of.


4. Every subtraction has a addition statement. For
   example,
   7  2 5 because 5  2  7

SECTION1.3 STUDY SET

STUDY SKILLS CHECKLIST

Getting the Most from the Study Sets

The following checklist will help you become familiar with the Study Sets in this book. Place a

check mark in each box after you answer the question.

Answers to the odd-numbered Study Set problems

are located in the appendix on page A-33. On what

page do the answers to Study Set 1.3 appear?

Each Study Set begins with Vocabulary problems.

How many Vocabulary problems appear in Study

Set 1.3?

Following the Vocabulary problems, you will see

Conceptsproblems. How many Concepts problems

appear in Study Set 1.3?

Following the Concepts problems, you will see

Notation problems. How many Notation problems

appear in Study Set 1.3?

After the Notation problems,Guided Practice

problems are given which are linked to similar

examples within the section. How many Guided

Practice problems appear in Study Set 1.3?

After the Guided Practice problems,Try It

Yourself problems are given and can be used to

help you prepare for quizzes. How many Try It

Yourself problems appear in Study Set 1.3?

Following the Try It Yourself problems, you will see

Applicationsproblems. How many Applications

problems appear in Study Set 1.3?

After the Applicationsproblems in Study Set 1.3,

how many Writingproblems are given?

Lastly, each Study Set ends with a few Review

problems. How many Review problems appear in

Study Set 1.3?

Answers: A-34, 6, 4, 4, 40, 28, 18, 4, 6

Caution! When making the calculation in Example 10, we must perform the

subtraction first. If the addition is done first, we get the incorrect answer 6.

 6

27  16  5  27  21