Math 50Math 50

Technical MathematicsTechnical Mathematics

TopicsTopics

Whole numbersWhole numbersDecimalsDecimalsFractionsFractionsPercentPercentRatio and ProportionRatio and Proportion

TerminologyTerminology

Natural numbers: {1, 2, 3,…}Natural numbers: {1, 2, 3,…}Whole numbers: {0, 1, 2, 3,…}Whole numbers: {0, 1, 2, 3,…} Integers: { …-3, -2, -1, 0, 1, 2, 3, …}Integers: { …-3, -2, -1, 0, 1, 2, 3, …}

consist of the whole nos. and their consist of the whole nos. and their oppositesopposites

Whole numbers and their Whole numbers and their operationsoperations

AdditionAdditionSubtractionSubtractionMultiplicationMultiplicationDivisionDivision

Decimals and their operationsDecimals and their operations

AdditionAdditionSubtraction Subtraction MultiplicationMultiplicationDivisionDivision

Fractions and their operationsFractions and their operations

Simplifying fractionsSimplifying fractionsAdditionAdditionSubtractionSubtractionMultiplicationMultiplicationDivisionDivision

PercentPercent

Percent means “per hundred”Percent means “per hundred”Conversion between percent, decimals Conversion between percent, decimals

and fractions.and fractions.Examples: 17% = 0.17 = Examples: 17% = 0.17 = 17 17

100100

100% = 1 = 100% = 1 = 100100

100100

Ratio and ProportionRatio and Proportion

Define a ratio: Define a ratio: aa

bbDefine a proportion.Define a proportion.

aa = = cc

b db d