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Sunday, December 16, 2012

Fiolo's Scribe Post

Dividing Integers Rules:
When you divide two integers with the same sign, the result is always positive. Just divide the absolute values and make the answer positive.

Positive ÷ positive = positive
Negative ÷ negative = positive


Example: 12 divided by 4 equals 3










How many groups of 4 are in 12? Share with 4 groups.


When you divide two integers with different signs, the result is always negative. Just divide the absolute values and make the answer negative.

Positive ÷ negative = negative
Negative ÷ positive = negative

Share (-12) with 4 groups.

Multiplicative Inverse
You don't need to model.

12 divided by -3 = -4
-4 x -3= 12

Here's a link about dividing integer.
http://www.youtube.com/watch?v=2QJCOnStpy0

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