AC9M6N07

Elaborations

• AC9M6N07_E1explaining how 1/3 of a quantity can be achieved by dividing by 3, and how knowledge of 1/3 of a quantity can be used to find 2/3 or 4/3 of the same quantity using situations involving money, length, duration, mass or capacity
• AC9M6N07_E2investigating percentage discounts of 15%, 30% and 45% in an online toy sale, using their equivalent decimal representations of 0.15, 0.3 and 0.45 to calculate the amount of discount on sale items, with and without digital tools
• AC9M6N07_E3linking percentages to their decimal equivalent of tenths and hundredths and using these to determine percentage discounts; for example, finding 30% discount by using its equivalence to 0.3, dividing by 10 and multiplying the result by 3 to give 30%
• AC9M6N07_E4explaining the equivalence between percentages and fractions; for example, 331/3% and 1/3; keeping to percentages that are equivalent to fractions with small denominators such as 662/3% and 12.5%
• AC9M6N07_E5representing a situation with a mathematical expression; for example, numbers and symbols such as 1/4×24, that involve finding a familiar fraction or percentage of a quantity; using mental strategies or a calculator and explaining the result in terms of the situation in question