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Year 9 Interactive Maths - Second Edition

Chapter 12 Consumer Arithmetic

In this chapter we will consider percentages, percentage increase, percentage decrease, profit, loss, simple interest, loans, discount and commission.

Percentages
Changing a Percentage to a Decimal
Changing a Decimal or a Fraction to a Percentage
Finding a Percentage of a Quantity
Expressing a Quantity as a Percentage of another Quantity
Percentage Decrease
Percentage Increase
Loss
Profit
Simple Interest
Calculating the Principal
Calculating the Rate of Interest
Calculating the Time
Loans
Discount
Commission
Problem Solving
Problem Solving Unit
Projects
Symbols
Index

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