Numberline and Integers

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

Which is not an integer?  

• -5
• 12
• 0
• -1/2

Express as an integer:  at sea level

• 0
• -0
• 1
• -10

What is the opposite of 10? 

• 10
• -10
• 0
• 20

What is the opposite of -3?

• 3
• 0
• -1/3
• 1/3

What is the opposite of zero?

• 1
• -1
• 0
• it doesn't have one

Integers are

• all positive numbers only.
• all negative numbers only.
• all counting numbers and their opposites
• percentages, fractions, & square root.

Opposite integers are

• The same distance from zero but in the same directions.
• opposite symbol of an positive is +
• The same distance from zero but in opposite directions.
• opposite symbol of negative is -