2 classifying numbers notes.notebook

1

September 03, 2013

Aug 20­8:42 AM

Classifying Numbers

and

Order of Operations

Aug 20­8:34 AM

Fill in the blanks:

There are ___ e‛s,

___ t‛s, and ____ s‛s in this sentence.

(Be careful, you may add letters that you did not take into account!!!)

Aug 20­8:34 AM

Real Numbers  (ℝ)Irraonal 

Numbers

Raonal Numbers ( ℚ)

Decimal form either terminates or repeats

Decimal form is non‐terminang and non‐repeang

Integers (ℤ) Whole NumbersNatural Numbers (ℕ)

1, 2, 3, …

0, 1, 2, 3, ……‐3, ‐2, ‐1, 0, 1, 2, 3, …

All raonal and irraonal numbers

Aug 20­8:34 AM

Tell all that apply:  • Real

• Rational

• Irrational

• Integer

• Whole Number

• Natural Number

Aug 20­8:34 AM

Tell all that apply:  • Real

• Rational

• Irrational

• Integer

• Whole Number

• Natural Number

Aug 20­8:34 AM

Classify each number in as many ways as possible.

•  

•  0

• 23.0

• ­2.2

•  

•  

2 classifying numbers notes.notebook

2

September 03, 2013

Aug 20­8:34 AM

Sign Rules for ADD/subtract • Same Signs:

• *Add the numbers

• *Take their sign

• Different Signs:

• *Subtract the numbers

• *Take sign of # with largest absolute value

• Minus a Negative:

• *Plus a Positive

Aug 20­8:34 AM

Sign rules for multiply/divide

• Same Signs:

• *Mult/Div the #’s

• *Answer is positive

• Different Signs:

• *Mult/Div the #’s

• *Answer is negative

Aug 20­8:34 AM

Let’s try a few

Aug 20­8:34 AM

Add/subtract Fractions• Get a common denominator (LCM)

• Combine using operation

Aug 20­8:34 AM

Multiply/divide• Multiply: Divide (Remember

reciprocals for dividing):

Aug 20­8:34 AM

• Order of Operations

P

E

M

D

A

S

2 classifying numbers notes.notebook

3

September 03, 2013

Aug 20­8:34 AM

• Evaluate:

Aug 20­8:34 AM

• Evaluate:

Aug 20­8:34 AM

• Evaluate:

Aug 20­9:52 AM