Friday, August 6, 2010

Adding negative and positive numbers

(1) What is an integer?

(2) Adding Integers

(3) Adding Integers with a number line

(4) Adding Integers, animated number line

(5) Adding Integers - use the sign of the larger absolute number; adding 3 numbers.

(6) Adding Integers (with dogs & cats)

(7) Adding and Subtracting negative and positive integers - Rules
When he says bigger number, he means the bigger absolute number.

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