Number Systems and Operations

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Presentation transcript:

Number Systems and Operations Corresponds to chapter 1.2 MCR text

Natural Numbers: Numbers 1 through infinity ∞. Examples: 1,2,3,…. Number Systems Natural Numbers: Numbers 1 through infinity ∞. Examples: 1,2,3,….

Whole Numbers: the number zero plus the natural numbers. Examples 0 𝑝𝑙𝑢𝑠, 1,2,3,4…

Integers Integers: Positive or negative numbers that can be written without a fractional component. Examples: …−3,−2,−1,0,1,2,3…

Number Line We can diagram numbers using a “number line” Positive numbers point to the right ( “greater than” zero). Negative numbers point to the left ( “less than” zero).

Graphing Later on, we will add a vertical “number line” and graph in two dimensions.

Rational Numbers Rational Numbers: numbers that can be expresses as ratios. Examples: − 1 8 , 1 4 , 8 5 , 𝑒𝑡𝑐

Irrational Numbers Numbers that can not be expressed as a ratio Examples: 3 , 𝜋, 17 , 𝑒𝑡𝑐

Real numbers The real number system includes all rational and irrational numbers.

Imaginary numbers Square root of a negative number such that 𝑖 2 =−1

A visual Imaginary numbers .

Helpful video https://www.youtube.com/watch?v=ku4KOFQ-bB4