Integers

Using a number line to add integers.

A vertical Number line.

Just in case:
Zero pair - A pair of integer chips with one chip representing +1 and 1 chip representing.
Opposite integers - Two integers with the same numeral but different signs.

(+2) + (+3) = 5

(-4) + (-2) = -6

(+3) + (-2) = 1

Positive Numbers move right. Negative numbers move left.

A number line can be vertical also.

Here's a website to help you:
http://www.mathleague.com/help/integers/integers.htm

Here's also a video if this helps.
http://www.youtube.com/v/27CJH60xwuA&hl=en_US&fs=1&color1=0x402061&color2=0x9461ca

Page 319 - 322 is homework! :]