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

How Bloomi helps with this

This is a NAPLAN-year topic. Bloomi teaches it with a short explainer, guided practice, and NAPLAN-style questions — every one traceable to this exact code.

What this looks like in the classroom

• identifying the interval between a pair of consecutive integers that includes a given rational number
• choosing and applying conventions for rounding correct to a specified number of decimal places based upon the context
• checking 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 \(\$100\)