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AC9M7N05

round decimals to a given accuracy appropriate to the context and use appropriate rounding and estimation to check the reasonableness of solutions

Elaborations

  • AC9M7N05_E1identifying the interval between a pair of consecutive integers that includes a given rational number
  • AC9M7N05_E2choosing and applying conventions for rounding correct to a specified number of decimal places based upon the context
  • AC9M7N05_E3checking that the accuracy of rounding is suitable for context and purpose, such as the amount of paint required and cost estimate for renovating a house; for example, purchasing 2 litres of paint to paint the bedroom even though 1.89 litres is the exact answer or estimating a renovation budget to the nearest $100

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AC9M7N05 – round decimals to a given accuracy appropriate to the context and use appropriate rounding and estimation to check the reasonableness of solutions | LessonForge