Unit 4 Math Vocabulary Quiz

1. The price of an Xbox game is normally $59.99. I bought the game for $39.99. What did I get on the game?

Percent

Discount

Greatest common factor

Common denominator

The correct answer is "discount" because the question mentions that the normal price of the Xbox game is $59.99, but the person bought it for $39.99. The difference between the normal price and the price they paid is $20.00, which represents the discount they received on the game.

Explanation

The correct answer is "discount" because the question mentions that the normal price of the Xbox game is $59.99, but the person bought it for $39.99. The difference between the normal price and the price they paid is $20.00, which represents the discount they received on the game.

2. A number that is written using both a whole number and a fraction.

Common denominator

Common factor

Mixed number

Equivalent fractions

A mixed number is a number that is written using both a whole number and a fraction. It is a combination of a whole number and a proper fraction. For example, 3 1/2 is a mixed number, where 3 is the whole number and 1/2 is the fraction.

Explanation

A mixed number is a number that is written using both a whole number and a fraction. It is a combination of a whole number and a proper fraction. For example, 3 1/2 is a mixed number, where 3 is the whole number and 1/2 is the fraction.

3. Which is an example of equivalent fractions?

11/22 = 22/44

10/20 = 15/25

7/8 = 14/24

2/3 = 4/5

The given fractions 11/22 and 22/44 are equivalent because they represent the same value. When we simplify the fraction 22/44 by dividing both the numerator and denominator by 2, we get 11/22, which is the same as the first fraction. Therefore, 11/22 = 22/44 is an example of equivalent fractions.

Explanation

The given fractions 11/22 and 22/44 are equivalent because they represent the same value. When we simplify the fraction 22/44 by dividing both the numerator and denominator by 2, we get 11/22, which is the same as the first fraction. Therefore, 11/22 = 22/44 is an example of equivalent fractions.

4. Which is a percent?

0.73

73/100

73

73%

The correct answer is 73% because it represents a value as a percentage. The other options are either decimals or fractions, but 73% is the only one that explicitly states a value as a percentage.

Explanation

The correct answer is 73% because it represents a value as a percentage. The other options are either decimals or fractions, but 73% is the only one that explicitly states a value as a percentage.

5. The smallest number that is a multiple of two or more numbers.

Least common multiple

Least common denominator

Quick common denominator

Common denominator

The least common multiple is the smallest number that is divisible by two or more numbers without leaving a remainder. It is found by identifying the common factors of the given numbers and multiplying them together. As it is the smallest multiple that all the numbers have in common, it is the correct answer for the given question.

Explanation

The least common multiple is the smallest number that is divisible by two or more numbers without leaving a remainder. It is found by identifying the common factors of the given numbers and multiplying them together. As it is the smallest multiple that all the numbers have in common, it is the correct answer for the given question.

6. Which below is an example of simplest form?

2/4 = 1/2

50/100 = 25/50

30/60 = 15/30

The given example of 2/4 = 1/2 is an example of the simplest form because both fractions have the same numerator and denominator, which means they are equivalent. By dividing both the numerator and denominator by their greatest common divisor, we can simplify the fraction to its lowest terms, which is 1/2.

Explanation

The given example of 2/4 = 1/2 is an example of the simplest form because both fractions have the same numerator and denominator, which means they are equivalent. By dividing both the numerator and denominator by their greatest common divisor, we can simplify the fraction to its lowest terms, which is 1/2.

7. Which is an example of a common denominator?

3/7,4/21

1/2,2/7

21/30,30/25

17/25,18/79

A common denominator is a number that can be divided evenly by the denominators of two or more fractions. In this case, the fractions 3/7 and 4/21 have a common denominator of 21 because both denominators can evenly divide into 21. Therefore, 3/7 and 4/21 are an example of a common denominator.

Explanation

A common denominator is a number that can be divided evenly by the denominators of two or more fractions. In this case, the fractions 3/7 and 4/21 have a common denominator of 21 because both denominators can evenly divide into 21. Therefore, 3/7 and 4/21 are an example of a common denominator.

8. The product of the denominators of two or more fractions.

Quick common denominator

Mixed number

Common demoninator

Common factor

A quick common denominator refers to finding the least common multiple of the denominators of two or more fractions in a fast and efficient manner. This allows for easier addition, subtraction, or comparison of the fractions. It is a method used to simplify calculations involving fractions by finding a common denominator quickly. It is different from a common denominator, which is the shared multiple of the denominators of two or more fractions. A mixed number refers to a whole number combined with a fraction, while a common factor refers to a number that divides evenly into two or more numbers.

Explanation

A quick common denominator refers to finding the least common multiple of the denominators of two or more fractions in a fast and efficient manner. This allows for easier addition, subtraction, or comparison of the fractions. It is a method used to simplify calculations involving fractions by finding a common denominator quickly. It is different from a common denominator, which is the shared multiple of the denominators of two or more fractions. A mixed number refers to a whole number combined with a fraction, while a common factor refers to a number that divides evenly into two or more numbers.

9. A counting number of two or more counting numbers is a factor of each of those numbers.

Equivalent fraction

Least common multiple

Common factor

Mixed number

A common factor is a number that divides evenly into two or more numbers. In this case, the statement is saying that if you have two or more counting numbers, then any counting number that can divide evenly into all of them is a common factor of those numbers. This means that the common factor is a factor of each of the numbers, making it the correct answer.

Explanation

A common factor is a number that divides evenly into two or more numbers. In this case, the statement is saying that if you have two or more counting numbers, then any counting number that can divide evenly into all of them is a common factor of those numbers. This means that the common factor is a factor of each of the numbers, making it the correct answer.