ACARA AC9M4N06, Estimate to check answers
Year 4 · Number
Estimate quantities and use estimation when solving problems to decide whether calculations are reasonable.
Below are free printable maths worksheets that support AC9M4N06. Print them as PDFs, or generate a fresh one. Every maths answer key is computed in code, so it is never wrong.
Teaching guide
Estimate quantities and use estimation when solving problems to decide whether calculations are reasonable.
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.
Generated and checked in code, so it is correct.
Rounding to the wrong place, and the exact-halfway case (5 rounds up) being applied inconsistently.
Rounding worksheets
All rounding worksheets →Australian Curriculum content descriptions (c) ACARA, used under CC BY 4.0. Descriptions are paraphrased. See australiancurriculum.edu.au.