PACKET #7

Introduction to Mathematics

Definition

Mathematics A science of structure and order Evolved from counting measuring and describing the

shapes of objects Deals with logical reasoning and quantitative

calculation Quantitative

Relating to number or quantity

Brief History of Mathematics

In Africa, a cave was found containing rocks with geometric patterns scratched into it

Artifacts discovered in Africa and France dating back to the earliest times on the planet suggest people tried to quantify time.

Evidence suggest that women devised counting to keep track of their menstrual cycles

Brief History of Mathematics II

In India, the earliest mathematics is dated around 3000 B.C. in the Indus Valley Civilization Decimal system Weights Right angles Geometric shapes

In China Earliest extant mathematics dates during the Shang

dynasty around 1600 B.C.Babylon (modern day Iraq)EgyptGreeks

All had B.C. timelines in regards to mathematics

Today…

Mathematics is a science…that is used within science.

Simple Addition Problems

Complete the following 678+345 5689+523+1298+2311

Simple Subtraction Problems

Complete the following 45789-5786 325 - 500

Simple Multiplication Problems

Complete the following 5693 * 9 225 * 11 625 * 25

Simple Division Problems

Complete of the following 475 / 5 56271 / 3 56216 / 12

Homework Problem Set #1

56231 * 461661349 / 956391164 / 146281 * 46 + (25 – 3)63 / 9 * 3 + 45(65 * (3 + 2)) – (66 / 11 + 42 * 4)

Fractions

Definition

Fraction Indicates small parts/bits of a whole

Apple example

Fractions—Problems

AdditionSubtractionMultiplicationDivision

Homework Problem Set #2

Provided in Class

Decimals and Rounding

Rounding is the process of approximating a quantity Round 245.678 to two decimal places

245.68 Round 245.689578 to three decimal places

245.690 Round 245.689578 to four significant numbers

245.7 Round 245.689578 to two significant numbers

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