ACARA AC9M3N05, Estimate and check
Year 3 · Number
Estimate quantities and use estimation when solving problems to judge whether an answer is reasonable.
Below are free printable maths worksheets that support AC9M3N05. 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 judge whether an answer is 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.