## Monday, March 14, 2011

### Katerina's Great Big Book Of Integers

Chapter One :
Here is what we did in class. First, we discussed on how we could solve a integer problem.

We can ...
use a number line :

Or integer Chips :

We also discussed Zero Pairs.

Zero Pairs : A pair of numbers that has a sum of zero. Something really easy to remember is .....

" When subtracting something that isn't there use a zero pair. "

Questions we did in Class :

Question one :

Question Two :

Chapter Two :

(+2) x (+3) = +6

(+2) x (-3) = -6

(-2) x (+3) = -6

(-2) x (-3) = +6

Chapter Three :

Partitive division : is groups of.
Queston one :

6/2 = 3

How many groups of (+2) are in (+6)

(-6)/(-2)= -3

Quotative division : spliting something between a number of groups.

(-6)/2= -3

Chapter Four :

Order of operations:

(+5)x(-3)+(-6)/(+3)=

I rewrote it and got

(+6)x(-3)+[(-6)/(+3)]=

How I solved it :

First :

(-6)-(+3) = -3

- - - - - -

+ + +

Then three times there is a zero pair : then you are left with -3. Then I solve the second part of my question.

(+5)x(-3) = (-15)

(-3) + (-15) = (-18)