Math II

Question 1

What is an integer?

Answer 1

An integer is a whole number that can be positive, negative, or zero.

Question 2

True or False: All integers are rational numbers.

Answer 2

True

Question 3

Fill in the blank: Rational numbers can be expressed as a fraction of two integers, where the denominator is not _____.

Answer 3

zero

Question 4

What is the set of rational numbers denoted by?

Answer 4

The set of rational numbers is denoted by Q.

Question 5

Which of the following is an example of a rational number? a) √2 b) 1/3 c) π

Answer 5

b) 1/3

Question 6

What is a real number?

Answer 6

A real number is any number that can be found on the number line, including both rational and irrational numbers.

Question 7

True or False: The square root of a negative number is a real number.

Answer 7

False

Question 8

What is the decimal representation of the rational number 3/4?

Answer 8

0.75

Question 9

Fill in the blank: A number that cannot be expressed as a fraction of two integers is called an ____ number.

Answer 9

irrational

Question 10

How can you approximate the value of π?

Answer 10

You can approximate the value of π as 3.14 or 22/7.

Question 11

What is the difference between approximation and estimation?

Answer 11

Approximation refers to a value that is close to a number, while estimation is a rough calculation or judgment of a value.

Question 12

True or False: The number 0.333… is a rational number.

Answer 12

True

Question 13

What is the result of rounding 4.67 to the nearest whole number?

Answer 13

5

Question 14

What is the greatest integer less than or equal to 2.7?

Answer 14

2

Question 15

Which of the following is NOT a real number? a) -5 b) 0.5 c) √-1

Answer 15

c) √-1

Question 16

Fill in the blank: The number 0 is considered a _____ number.

Answer 16

whole

Question 17

What is the simplest form of the fraction 8/12?

Answer 17

2/3

Question 18

True or False: Every integer is a real number.

Answer 18

True

Question 19

What is the decimal equivalent of 1/8?

Answer 19

0.125

Question 20

What is an example of an irrational number?

Answer 20

An example of an irrational number is √2.

Question 21

Fill in the blank: The set of integers is denoted by the letter _____.

Answer 21

Z

Question 22

What is the approximate value of 1.414?

Answer 22

It is an approximation of √2.

Question 23

Which of the following is a property of rational numbers? a) They can be expressed as a repeating or terminating decimal b) They cannot be negative.

Answer 23

a) They can be expressed as a repeating or terminating decimal.

Question 24

True or False: 5.25 is a rational number.

Answer 24

True

Question 25

What is the product of -3 and 4?

Answer 25

-12

Question 26

Fill in the blank: The absolute value of -7 is _____.

Answer 26

7