Math for Semester Exam

Question 1

What are prime numbers?

Answer 1

Prime numbers are numbers with only two factors, them being 1 and the number itself.
Ex: 13- 1 x 13

Question 2

What are composite numbers?

Answer 2

Composite numbers are numbers that have more than only two factors.
Ex: 20- 1 x 20, 2 x 10, 4 x 5.

Question 3

Where does an exponent go and what does it mean?

Answer 3

An exponent is the small numer that goes on top of other numbers and determines how many times you have to multiply the number by itself.

Question 4

What do these symbols mean?

< >

Answer 4

Those symbols show which number is greater and which is the least.
Ex: 10 > 3. 10 is greater than 3.
5 < 20. 5 is less than 20.

Question 5

How do you get the tax of a product?

Answer 5

You multiply the price of the product by the percent of the tax.

Question 6

What is an even number?

Answer 6

An even number is any number that can be divided by 2. All even numbers are composite, except the number 2, which just has 2 factors.

Question 7

What is a negative number?

Answer 7

A negative number is a number that is less than zero.

Question 8

What is a fraction?

Answer 8

A fraction is a part of a number.

Question 9

True or false:

Percent = Fraction

Answer 9

True, they are the same thing in different forms.

Question 10

Can a percent be improper, like a fraction?

Answer 10

Yes, it can.

Question 11

What do each of the letters in QDSA stand for?

Answer 11

Q: Question
D: Data
S: Solution
A: Answer

Question 12

What is a percent?

Answer 12

A percent is a fraction out of 100.

Question 13

What is a positive number?

Answer 13

A positive number is a number above zero.

Question 14

What is a whole number?

Answer 14

A whole number is a number that has no decimal or fraction and is positive.

Question 15

True or false:

A whole number can be both negative and positive.

Answer 15

False, a whole number HAS to be positive.