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ACARA AC9M5A02, Unknowns with brackets

Year 5 · Algebra

Find unknown values in equations involving brackets and combinations of operations using the properties of numbers.

Below are free printable maths worksheets that support AC9M5A02. 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

Find unknown values in equations involving brackets and combinations of operations using the properties of numbers.

How to teach it

Teach the agreed order (brackets, then × and ÷ left to right, then + and - left to right) and why it removes ambiguity, with worked contrasts.

Worked example
8 + 12 × 8 =
Answer: 104
Why: × first: 12×8=96, then 8+96=104

Generated and checked in code, so it is correct.

Watch out for

Working strictly left to right and doing addition before multiplication.

Order of Operations worksheets

All order of operations worksheets →
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More Year 5 Algebra codes: AC9M5A01
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Australian Curriculum content descriptions (c) ACARA, used under CC BY 4.0. Descriptions are paraphrased. See australiancurriculum.edu.au.