## Monday, March 21, 2011

### Shane's Great Big Book of Integers

Chapter 1 Grade 7 Integer Review.

zero pair is when you have a positive and a negative whose sum is 0.
(+9)+(-9), (+10)+(-10), (+11)+(-11), (+12)+(-12)

Positive (+)= you have.
Negative (-)= you owe.
Standard form of Integer is: +3-3
Pure standard form is: 3-3

Chapter 2: Multiplying Integers.

Chapter 3: Dividing Integers.

Partative Division: How many groups of 2 are in 8? or How many 2's go into 8?
Quotative Division: sharing with groups

Multiplicative Inverse can help you solve 8/(-2) by switching the number around when checking the answer. Like this: the answer in 8/(-2) is -4 so you use multiplicative inverse to check if your answer is right.
8/(-2)= -4.

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.

8/2= +4 (it's positive because both factors are positive)
-8/(-2)= +4 (it's positive because there is an even number of negative factors)
(-8)/2= -4 (it's negative because there is an odd number of negative factors)
8/(-2)= -4 (it's negative because there is an odd number of negative factors)

Chapter 4: Order of Operation With Integers.

BEDMAS: Brackets, Exponents, Division, Multiplication, Addition, Subtraction

EXAMPLE:
(+6)x(-4)+(-8)/(+4)=
[(+6)x(-4)]+(-8)/(+4)=
-24+[(-8)/(+4)]=
-24+ -2= -26

#### 1 comment:

1. Your post is good but you misspelled one word. Try to fix it. Other than that, good job!