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Exercise Supplement

Module by: Wade Ellis, Denny Burzynski. E-mail the authorsEdited By: Math Editors

Summary: This module is from Fundamentals of Mathematics by Denny Burzynski and Wade Ellis, Jr. This module is an exercise supplement for the chapter "Multiplication and Division of Whole Numbers" and contains many exercise problems. Odd problems are accompanied by solutions.

Exercise Supplement

Multiplication of Whole Numbers ((Reference))

Exercise 1

In the multiplication 5×9=455×9=45 size 12{5 times 9="45"} {}, 5 and 9 are called
and 45 is called the
.

Solution

factors; product

Exercise 2

In the multiplication 4×8=324×8=32 size 12{4 times 8="32"} {}, 4 and 8 are called
and 32 is called the
.

Concepts of Division of Whole Numbers ((Reference))

Exercise 3

In the division 24÷6=424÷6=4 size 12{"24" div 6=4} {}, 6 is called the
, and 4 is called the
.

Solution

divisor; quotient

Exercise 4

In the division 36÷2=1836÷2=18 size 12{"36" div 2="18"} {}, 2 is called the
, and 18 is called the
.

Some Interesting Facts about Division ((Reference))

Exercise 5

A number is divisible by 2 only if its last digit is
.

Solution

an even digit (0, 2, 4, 6, or 8)

Exercise 6

A number is divisible by 3 only if
of its digits is divisible by 3.

Exercise 7

A number is divisible by 4 only if the rightmost two digits form a number that is
.

Solution

divisible by 4

Multiplication and Division of Whole Numbers ((Reference),(Reference))

Find each product or quotient.

Exercise 8

24 ×  3 ̲ 24 ×  3 ̲

Exercise 9

14 ×  8 ̲ 14 ×  8 ̲

Solution

112

Exercise 10

21÷721÷7

Exercise 11

35÷535÷5

Solution

7

Exercise 12

36 × 22 ̲ 36 × 22 ̲

Exercise 13

87 × 35 ̲ 87 × 35 ̲

Solution

3,045

Exercise 14

117 × 42 ̲ 117 × 42 ̲

Exercise 15

208÷52208÷52

Solution

4

Exercise 16

521 ×   87 ̲ 521 ×   87 ̲

Exercise 17

1005 ×     15 ̲ 1005 ×     15 ̲

Solution

15,075

Exercise 18

1338÷4461338÷446

Exercise 19

2814÷2012814÷201

Solution

14

Exercise 20

5521 × 8 ̲ 5521 × 8 ̲

Exercise 21

6016 ×     7 ̲ 6016 ×     7 ̲

Solution

42,112

Exercise 22

576÷24576÷24

Exercise 23

3969÷633969÷63

Solution

63

Exercise 24

5482 ×   322 ̲ 5482 ×   322 ̲

Exercise 25

9104 ×   115 ̲ 9104 ×   115 ̲

Solution

1,046,960

Exercise 26

6102 × 1000 ̲ 6102 × 1000 ̲

Exercise 27

10101 × 10000 ̲ 10101 × 10000 ̲

Solution

101,010,000

Exercise 28

162,006÷31162,006÷31

Exercise 29

0÷250÷25

Solution

0

Exercise 30

25÷025÷0

Exercise 31

4280÷104280÷10

Solution

428

Exercise 32

2126000÷1002126000÷100

Exercise 33

84÷1584÷15

Solution

5 remainder 9

Exercise 34

126÷4126÷4

Exercise 35

424÷0424÷0

Solution

not defined

Exercise 36

1198÷461198÷46

Exercise 37

995÷31995÷31

Solution

32 remainder 3

Exercise 38

0÷180÷18

Exercise 39

2162 × 1421 ̲ 2162 × 1421 ̲

Solution

3,072,202

Exercise 40

0×00×0

Exercise 41

5×05×0

Solution

0

Exercise 42

64×164×1

Exercise 43

1×01×0

Solution

0

Exercise 44

0÷30÷3

Exercise 45

14÷014÷0

Solution

not defined

Exercise 46

35÷135÷1

Exercise 47

1÷11÷1

Solution

1

Properties of Multiplication ((Reference))

Exercise 48

Use the commutative property of multiplication to rewrite 36×12836×128 size 12{"36" times "128"} {}.

Exercise 49

Use the commutative property of multiplication to rewrite 114×226114×226.

Solution

226⋅114226⋅114

Exercise 50

Use the associative property of multiplication to rewrite (5⋅4)⋅8(5⋅4)⋅8 size 12{ \( 5 cdot 4 \) cdot 8} {}.

Exercise 51

Use the associative property of multiplication to rewrite 16⋅(14⋅0)16⋅(14⋅0) size 12{"16" cdot \( "14" cdot 0 \) } {}.

Solution

(16⋅14)⋅0(16⋅14)⋅0 size 12{ \( "16" cdot "14" \) cdot 0} {}

Multiplication and Division of Whole Numbers ((Reference),(Reference))

Exercise 52

A computer store is selling diskettes for $4 each. At this price, how much would 15 diskettes cost?

Exercise 53

Light travels 186,000 miles in one second. How far does light travel in 23 seconds?

Solution

4,278,000

Exercise 54

A dinner bill for eight people comes to exactly $112. How much should each person pay if they all agree to split the bill equally?

Exercise 55

Each of the 33 students in a math class buys a textbook. If the bookstore sells $1089 worth of books, what is the price of each book?

Solution

$33

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