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Year 8 - Number and Algebra
Standard 8.OA.1.2 - Solve proportions to find the missing number.
Real numbers • Investigate terminating and recurring decimals - recognising terminating, recurring and non-terminating decimals and choosing their appropriate representations • Investigate the concept of irrational numbers, including Ï€ - understanding that the real number system includes irrational numbers • Solve problems involving the use of percentages, including percentage increases and decreases, with and without digital technologies - using percentages to solve problems, including those involving mark-ups, discounts, and GST - using percentages to calculate population increases and decreases • Solve a range of problems involving rates and ratios, with and without digital technologies - understanding that rate and ratio problems can be solved using fractions or percentages and choosing the most efficient form to solve a particular problem - calculating population growth rates in Australia and Asia and explaining their difference