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ACARA AC9M7N05, Rounding and estimation

Year 7 ยท Number

Round decimals to a level of accuracy that suits the situation, and use rounding and estimation to check that answers are reasonable.

Below are free printable maths worksheets that support AC9M7N05. Print them as PDFs, or generate a fresh one. Every maths answer key is computed in code, so it is never wrong.

Teaching guide

What students learn

Round decimals to a level of accuracy that suits the situation, and use rounding and estimation to check that answers are reasonable.

How to teach it

Use a number line to see which ten/hundred a number is closest to. Underline the rounding digit and check the digit to its right.

Worked example
Round 14 to the nearest 10:
Answer: 10

Generated and checked in code, so it is correct.

Watch out for

Rounding to the wrong place, and the exact-halfway case (5 rounds up) being applied inconsistently.

Make a worksheet for AC9M7N05
More Year 7 Number codes: AC9M7N01 ยท AC9M7N02 ยท AC9M7N03 ยท AC9M7N04 ยท AC9M7N06 ยท AC9M7N07 ยท AC9M7N08 ยท AC9M7N09
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Australian Curriculum content descriptions (c) ACARA, used under CC BY 4.0. Descriptions are paraphrased. See australiancurriculum.edu.au.