Integers and the Number Line

A number GREATER than 0.

• positive number
• negative number
• integer
• signed number

A number LESS than 0.

• positive number
• negative number
• integer
• signed number

Where do you always start from on a number line?

• ?
• -0
• 0
• -1

Express an integer: a debt of $50

• 50
• -50

Express as an integer:  at sea level

• 0
• -0
• 1
• -10

What is the opposite of 10? 

• 10
• -10
• 0
• 20

Express an integer: a withdrawal of $100

• 100

• -100

A submarine was 1800 ft below sea level. It dove another 1500 feet deeper. Which integer represents its location? 

• -300
• -1300
• -3300
• 300

What is the opposite of -3?

• 3
• 0
• -1/3
• 1/3

Boston has a temperature of -20 degrees. It is colder in New York than in Boston. Select the value that could represent the temperature of New York

• 0
• 30
• -30
• -19