## Thursday, March 10, 2011

### Ryan's Great Big Book Of Integers

Chapter 1 Grade 7 Integer review
Integers can be represented with
-number lines
- integer chips
red = positive
blue = negative
red and blue = zero pair When something isn't there use a zero pair.
example -6+6=0, -8+8=0, -1256+1256=0
(+4)+(-4)=0
standard form 4-4=0

Chapter 2 Multiplying integers
1. (+3)x(+2)
3 groups of positive 2
standard form (3) (2)
2.(+2)x(-3)
2 groups of negative 3
standard form (+2) (-3)
3. (-2)x(+3)
removing 2 groups of 3
standard form (-2) (+3)
4. (-2)x(-3)
removing 2 groups of positive 3
standard form (-2) (-3)
Sign Rule
even = when you have an even number of negative factors the product is positive.
odd = when you have an odd number of negative factors the product is negative.

Chapter 3 Dividing Integers
Partitive division is how many groups of a number are in a given value.
Quotative Division is sharing a certain number between a given value.
Chapter 4 Operations with Integers
(+5) x (-3) + (-6) ÷ (+3)=
(-15) +(-6) ÷ (+3)=
(-15) + (-2) = -7