Exam 1

Question 1

What is a rational number?

Answer 1

A positive number in the form a/b; where b≠0

Rational numbers can be expressed as fractions.

Question 2

Define a fraction.

Answer 2

The amount formed by A parts or copies of a part, each of which is 1b of the whole

Fractions represent parts of a whole.

Question 3

What is a unit fraction?

Answer 3

If a whole is partitioned into b equal parts, then the amount formed by 1 of those parts is called this

Example: 1/4 is a unit fraction when a whole is divided into 4 equal parts.

Question 4

What defines an improper fraction?

Answer 4

A fraction in which the numerator is greater than or equal to the denominator

Example: 5/4 is an improper fraction.

Question 5

What is a mixed number?

Answer 5

A number consisting of an integer added to a fraction

Example: 2 1/2 is a mixed number.

Question 6

Define a common fraction.

Answer 6

A fraction with a numerator less than the denominator

Example: 3/4 is a common fraction.

Question 7

In the fraction a/b, ‘a’ is called the ___________.

Answer 7

Numerator

The numerator indicates how many parts of the whole are considered.

Question 8

In the fraction a/b, ‘b’ is called the ________.

Answer 8

Denominator

The denominator tells us how many equal parts the whole has been cut into.

Question 9

Venn diagram

Answer 9

Natural
Whole
Integer
Rational

Irrational

all are real

Question 10

Base 10

Answer 10

Egyptians
Hindu-Arabic
Romans

Question 11

Base 20

Answer 11

Myans

Question 12

Base 60

Answer 12

babylonians

Question 13

Positional

Answer 13

Babylonians
Hindu Arabic
Mayans

Question 14

Zero Symbol

Answer 14

Egyptians
Hindu Arabic
Myans