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−4.2 + ( −9.3 )

−13.5

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Multiply and Divide Decimals

In the following exercises, multiply.

( 8.52 ) ( 3.14 )

26.7528

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( 0.09 ) ( 24.78 )

2.2302

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In the following exercises, divide.

Convert Decimals, Fractions, and Percents

In the following exercises, write each decimal as a fraction.

In the following exercises, convert each fraction to a decimal.

In the following exercises, convert each percent to a decimal.

In the following exercises, convert each decimal to a percent.

The Real Numbers

Simplify Expressions with Square Roots

In the following exercises, simplify.

Identify Integers, Rational Numbers, Irrational Numbers, and Real Numbers

In the following exercises, write as the ratio of two integers.

9 8.47

9 1 847 100

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In the following exercises, list the rational numbers, irrational numbers.

0.84 , 0.79132 , 1. 3

0.84 , 1. 3 0.79132 ,

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2.3 8 , 0.572 , 4.93814

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In the following exercises, identify whether each number is rational or irrational.

121 48

rational irrational

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In the following exercises, identify whether each number is a real number or not a real number.

−9 169

not a real number real number

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In the following exercises, list the whole numbers, integers, rational numbers, irrational numbers, real numbers for each set of numbers.

−4 , 0 , 5 6 , 16 , 18 , 5.2537

0 , 16 −4 , 0 , 16 −4 , 0 , 5 6 , 16 18 , 5.2537 −4 , 0 , 5 6 , 16 , 18 , 5.2537

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4 , 0. 36 , 13 3 , 6.9152 , 48 , 10 1 2

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Locate Fractions on the Number Line

In the following exercises, locate the numbers on a number line.

In the following exercises, order each of the following pairs of numbers, using<or>.

Locate Decimals on the Number Line

In the following exercises, locate on the number line.

In the following exercises, order each of the following pairs of numbers, using<or>.

Properties of Real Numbers

Use the Commutative and Associative Properties

In the following exercises, use the Associative Property to simplify.

In the following exercises, simplify.

6 y + 37 + ( −6 y )

37

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1 4 + 11 15 + ( 1 4 )

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14 11 · 35 9 · 14 11

35 9

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( 7 12 + 4 5 ) + 1 5

1 7 12

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( 3.98 d + 0.75 d ) + 1.25 d

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11 x + 8 y + 16 x + 15 y

27 x + 23 y

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52 m + ( −20 n ) + ( −18 m ) + ( −5 n )

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Use the Identity and Inverse Properties of Addition and Multiplication

In the following exercises, find the additive inverse of each number.


1 3
5.1
−14
8 5

1 3 −5.1 14 8 5

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7 8
−0.03
17
12 5

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In the following exercises, find the multiplicative inverse of each number.

10 4 9 0.6

1 10 9 4 5 3

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9 2 −7 2.1

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Use the Properties of Zero

In the following exercises, simplify.

In the following exercises, simplify.

Simplify Expressions Using the Distributive Property

Questions & Answers

what is mutation
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what is a cell
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classification of plants, gymnosperm features.
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What is Atoms
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urine is formed in the nephron of the renal medulla in the kidney. It starts from filtration, then selective reabsorption and finally secretion
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State the evolution relation and relevance between endoplasmic reticulum and cytoskeleton as it relates to cell.
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how is urine formed in human
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malaria is caused by an insect called mosquito.
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Malaria is cause by female anopheles mosquito
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Malaria is caused by plasmodium Female anopheles mosquitoe is d carrier
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a canal is more needed in a root but a cavity is a bad effect
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what are pathogens
Don Reply
In biology, a pathogen (Greek: πάθος pathos "suffering", "passion" and -γενής -genēs "producer of") in the oldest and broadest sense, is anything that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ. The term pathogen came into use in the 1880s.[1][2
Zainab
A virus
Commander
Definition of respiration
Muhsin Reply
respiration is the process in which we breath in oxygen and breath out carbon dioxide
Achor
how are lungs work
Commander
where does digestion begins
Achiri Reply
in the mouth
EZEKIEL
what are the functions of follicle stimulating harmones?
Rashima Reply
stimulates the follicle to release the mature ovum into the oviduct
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what are the functions of Endocrine and pituitary gland
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endocrine secrete hormone and regulate body process
Achor
while pituitary gland is an example of endocrine system and it's found in the Brain
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what's biology?
Egbodo Reply
Biology is the study of living organisms, divided into many specialized field that cover their morphology, physiology,anatomy, behaviour,origin and distribution.
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biology is the study of life.
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Biology is the study of how living organisms live and survive in a specific environment
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Source:  OpenStax, Elementary algebra. OpenStax CNX. Jan 18, 2017 Download for free at http://cnx.org/content/col12116/1.2
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