BODMAS Rule Explained: Order of Operations + Free Practice Test

BODMAS stands for Brackets, Orders, Division, Multiplication, Addition and Subtraction. It tells you the correct order for solving calculations with more than one operation. Division and multiplication are completed from left to right, followed by addition and subtraction from left to right.
BODMAS The Complete Guide to the Order of Operations

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BODMAS Practice Test

Practise the order of operations with BODMAS. Start with simple calculations, then progress to nested brackets, powers and multi-step expressions.

  • 3 progressive levels
  • 30 practice questions
  • Instant answer checks
  • Hints and full working
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Level 1 Easy BODMAS Practice 10 questions · Foundation 0/10

Tip: Remember BODMAS: Brackets first, then Orders, Division and Multiplication, then Addition and Subtraction.
  1. Solve using BODMAS: 8 + 4 × 2

    View hint and full working

    Hint: Do the multiplication before the addition.

    Working
    4 × 2 = 8
    8 + 8 = 16
    Answer: 16
  2. Solve using BODMAS: (7 + 3) × 5

    View hint and full working

    Hint: Calculate inside the brackets before multiplying.

    Working
    7 + 3 = 10
    10 × 5 = 50
    Answer: 50
  3. Solve using BODMAS: 18 ÷ 3 + 2

    View hint and full working

    Hint: Do the division before the addition.

    Working
    18 ÷ 3 = 6
    6 + 2 = 8
    Answer: 8
  4. Solve using BODMAS: 20 − 2 × 6

    View hint and full working

    Hint: Multiply before subtracting.

    Working
    2 × 6 = 12
    20 − 12 = 8
    Answer: 8
  5. Solve using BODMAS: (12 − 4) + 6

    View hint and full working

    Hint: Complete the brackets first.

    Working
    12 − 4 = 8
    8 + 6 = 14
    Answer: 14
  6. Solve using BODMAS: 5 + 3 × 2

    View hint and full working

    Hint: Multiplication comes before addition.

    Working
    3 × 2 = 6
    5 + 6 = 11
    Answer: 11
  7. Solve using BODMAS: (4 + 5) − 3

    View hint and full working

    Hint: Work out the brackets first, then subtract.

    Working
    4 + 5 = 9
    9 − 3 = 6
    Answer: 6
  8. Solve using BODMAS: 6 + 4 × 0

    View hint and full working

    Hint: Multiply 4 by 0 before adding 6.

    Working
    4 × 0 = 0
    6 + 0 = 6
    Answer: 6
  9. Solve using BODMAS: 10 − 2 + 4

    View hint and full working

    Hint: Addition and subtraction have equal priority, so work from left to right.

    Working
    10 − 2 = 8
    8 + 4 = 12
    Answer: 12
  10. Solve using BODMAS: 3 × 2 + 5

    View hint and full working

    Hint: Multiply first, then add.

    Working
    3 × 2 = 6
    6 + 5 = 11
    Answer: 11

Level 2 Medium BODMAS Practice 10 questions · Developing 0/10

Tip: For nested brackets, start with the innermost brackets and work outwards before completing multiplication, division, addition or subtraction.
  1. Solve using BODMAS: (5 + 3) × (2 + 4)

    View hint and full working

    Hint: Evaluate both brackets before multiplying the results.

    Working
    5 + 3 = 8
    2 + 4 = 6
    8 × 6 = 48
    Answer: 48
  2. Solve using BODMAS: (16 ÷ 4) + (9 − 2)

    View hint and full working

    Hint: Solve each bracket separately, then add.

    Working
    16 ÷ 4 = 4
    9 − 2 = 7
    4 + 7 = 11
    Answer: 11
  3. Solve using BODMAS: 45 ÷ (3 × 3)

    View hint and full working

    Hint: Complete the multiplication inside the brackets first.

    Working
    3 × 3 = 9
    45 ÷ 9 = 5
    Answer: 5
  4. Solve using BODMAS: 6 × (4 + 5) − 3

    View hint and full working

    Hint: Brackets first, then multiplication, then subtraction.

    Working
    4 + 5 = 9
    6 × 9 = 54
    54 − 3 = 51
    Answer: 51
  5. Solve using BODMAS: 100 − (6 × 5 + 10)

    View hint and full working

    Hint: Inside the brackets, multiply before adding.

    Working
    6 × 5 = 30
    30 + 10 = 40
    100 − 40 = 60
    Answer: 60
  6. Solve using BODMAS: (10 − (3 + 2)) × 4

    View hint and full working

    Hint: Start with the innermost brackets.

    Working
    3 + 2 = 5
    10 − 5 = 5
    5 × 4 = 20
    Answer: 20
  7. Solve using BODMAS: 36 ÷ [(2 × 3) + 6]

    View hint and full working

    Hint: Work through the square brackets before dividing.

    Working
    2 × 3 = 6
    6 + 6 = 12
    36 ÷ 12 = 3
    Answer: 3
  8. Solve using BODMAS: [(4 + 2) × 3] − 8

    View hint and full working

    Hint: Complete the inner brackets, then multiply, then subtract.

    Working
    4 + 2 = 6
    6 × 3 = 18
    18 − 8 = 10
    Answer: 10
  9. Solve using BODMAS: 81 − [(5 + 4) × 3]

    View hint and full working

    Hint: Complete the bracketed calculation before subtracting it from 81.

    Working
    5 + 4 = 9
    9 × 3 = 27
    81 − 27 = 54
    Answer: 54
  10. Solve using BODMAS: 3 + 6 × (5 − 2)

    View hint and full working

    Hint: Brackets first, then multiplication, then addition.

    Working
    5 − 2 = 3
    6 × 3 = 18
    3 + 18 = 21
    Answer: 21

Level 3 Hard BODMAS Practice 10 questions · Challenge 0/10

Tip: Orders such as squares are completed after brackets and before multiplication, division, addition and subtraction.
  1. Solve using BODMAS: (9 + 6) × [2 + (3 × 2)]

    View hint and full working

    Hint: Start with the innermost multiplication, then work out through the brackets.

    Working
    3 × 2 = 6
    2 + 6 = 8
    9 + 6 = 15
    15 × 8 = 120
    Answer: 120
  2. Solve using BODMAS: 42 + 3 × 2

    View hint and full working

    Hint: Calculate the power and multiplication before adding.

    Working
    4² = 16
    3 × 2 = 6
    16 + 6 = 22
    Answer: 22
  3. Solve using BODMAS: (32 + 2) × 2

    View hint and full working

    Hint: Inside the brackets, calculate the power before adding.

    Working
    3² = 9
    9 + 2 = 11
    11 × 2 = 22
    Answer: 22
  4. Solve using BODMAS: (2 + 3)2 − 5

    View hint and full working

    Hint: Complete the brackets before applying the square.

    Working
    2 + 3 = 5
    5² = 25
    25 − 5 = 20
    Answer: 20
  5. Solve using BODMAS: [4 × (2 + 1)]2 ÷ 6

    View hint and full working

    Hint: Complete the brackets, then square the result before dividing.

    Working
    2 + 1 = 3
    4 × 3 = 12
    12² = 144
    144 ÷ 6 = 24
    Answer: 24
  6. Solve using BODMAS: {(5 + 1) × 2 + 32} − (4 × 2)

    View hint and full working

    Hint: Evaluate each grouped part carefully, using powers before addition.

    Working
    5 + 1 = 6
    6 × 2 = 12
    3² = 9
    12 + 9 = 21
    4 × 2 = 8
    21 − 8 = 13
    Answer: 13
  7. Solve using BODMAS: ((2 + 2)2 − 4) × 2

    View hint and full working

    Hint: Start with the innermost brackets, then apply the square.

    Working
    2 + 2 = 4
    4² = 16
    16 − 4 = 12
    12 × 2 = 24
    Answer: 24
  8. Solve using BODMAS: (6 + 2) × (5 − 3)2

    View hint and full working

    Hint: Evaluate both brackets, square the second result, then multiply.

    Working
    6 + 2 = 8
    5 − 3 = 2
    2² = 4
    8 × 4 = 32
    Answer: 32
  9. Solve using BODMAS: {[(3 + 1) × 2] + 22} × 2

    View hint and full working

    Hint: Complete the inner brackets and the square before adding.

    Working
    3 + 1 = 4
    4 × 2 = 8
    2² = 4
    8 + 4 = 12
    12 × 2 = 24
    Answer: 24
  10. Solve using BODMAS: 5 × [2 + (32 − 4)]

    View hint and full working

    Hint: Calculate the square first inside the brackets, then work outwards.

    Working
    3² = 9
    9 − 4 = 5
    2 + 5 = 7
    5 × 7 = 35
    Answer: 35

BODMAS Explained (NSW) -Quick Summary:

The BODMAS rule helps students solve maths expressions in the correct order. It stands for

Brackets, Orders, Division, Multiplication, Addition and Subtraction.

This guide includes step-by-step rules, worked examples, common mistakes, and practice tips aligned to the NSW curriculum.

Introduction to the BODMAS Rule

Many students lose marks in maths not because they don’t know the operations, but because they perform them in the wrong order.
The BODMAS rule helps students solve mathematical expressions correctly by following a clear and consistent sequence.

BODMAS stands for:

By following this order, students avoid confusion and get the correct answer consistently. BODMAS is taught as part of the NSW Mathematics curriculum and appears regularly in school assessments, NAPLAN, OC, and Selective preparation.

Related: NSW Mathematics syllabus support

Why the BODMAS Rule is Important?

Mathematical expressions often contain more than one operation. Without a clear order, the same question could produce different answers.

BODMAS ensures everyone solves the expression the same way.

Example: Solve 6 + 2 × 3

  1. Multiply first: 2 × 3 = 6
  2. Add next: 6 + 6 = 12

Students use BODMAS throughout primary and high school maths, including algebra, fractions, equations, and word problems. It’s a foundational skill for exam accuracy.

The BODMAS Rule: Step-by-Step Guide

Follow these steps in order:

1) Brackets

Solve calculations inside brackets first. If there are multiple brackets, start with the innermost one.

Example: (5 + 3) × 2 → 5 + 3 = 8 → 8 × 2 = 16

2) Orders (Indices, Powers and Roots)

Next, solve powers (squares/cubes), square roots, and other indices.

Example: 4² = 16

3) Division and Multiplication (Left to Right)

Division and multiplication have equal priority. Solve them from left to right as they appear.

Example: 9 ÷ 3 × 3 → 9 ÷ 3 = 3 → 3 × 3 = 9

4) Addition and Subtraction (Left to Right)

Finally, solve addition and subtraction from left to right.

Example: 16 + 4 − 5 → 16 + 4 = 20 → 20 − 5 = 15

BODMAS Summary Table

Order of operations (BODMAS) summary
StepOperation
1Brackets
2Orders (powers/roots)
3Division and Multiplication (left to right)
4Addition and Subtraction (left to right)

Worked Examples (BODMAS Step-by-Step)

Example 1: 9 ÷ 3 × 3

  1. Division first: 9 ÷ 3 = 3
  2. Then multiply: 3 × 3 = 9

Example 2: 8 × 2 + 3

  1. Multiply first: 8 × 2 = 16
  2. Then add: 16 + 3 = 19

Example 3: 8 × (2 + 3)

  1. Brackets first: 2 + 3 = 5
  2. Then multiply: 8 × 5 = 40

Example 4 (Advanced): 4² × 24 ÷ (9 + 3) + 4 − 5

  1. Brackets: 9 + 3 = 12 → expression becomes 4² × 24 ÷ 12 + 4 − 5
  2. Orders: 4² = 16 → expression becomes 16 × 24 ÷ 12 + 4 − 5
  3. Multiply/divide (left to right): 16 × 24 = 384, then 384 ÷ 12 = 32 → expression becomes 32 + 4 − 5
  4. Add/subtract (left to right): 32 + 4 = 36, then 36 − 5 = 31

Common Mistakes Students Make

Mistake 1: Solving Left to Right Only

Example: 8 + 4 × 2

Wrong: 8 + 4 = 12 → 12 × 2 = 24

Correct: 4 × 2 = 8 → 8 + 8 = 16

Mistake 2: Ignoring Brackets

Brackets must be solved first. Ignoring brackets can completely change the answer, especially in harder problems.

Mistake 3: Skipping Orders (Squares/Roots)

Students sometimes forget to simplify powers and roots before moving to multiplication or division.

Mistake 4: Rushing in Exams

Many errors happen due to speed rather than understanding. Practising mixed-operation questions helps students apply BODMAS automatically.

How BODMAS is Taught in NSW Schools?

BODMAS is introduced in upper primary and reinforced throughout high school. Teachers use clear step-by-step strategies, practice worksheets, and exam-style questions to build accuracy.

External reference:
NSW Education Standards Authority (NESA)

BODMAS in Exams (NAPLAN, OC and Selective)

BODMAS-style questions appear in many NSW assessments, including NAPLAN and selective preparation. Students who apply the correct order
avoid losing marks on otherwise straightforward questions.

Try: Free NAPLAN practice tests

Real-Life Applications of BODMAS

Outside school, BODMAS helps with multi-step calculations such as discounts, budgeting, and formulas. In later years, it becomes essential for algebra, science, and financial maths.

BODMAS vs PEMDAS and BIDMAS

Different countries use different names for the same order of operations:

SystemMeaning
BODMASBrackets, Orders, Division/Multiplication, Addition/Subtraction
PEMDASParentheses, Exponents, Multiplication/Division, Addition/Subtraction
BIDMASBrackets, Indices, Division/Multiplication, Addition/Subtraction

In Australia, the standard term used is BODMAS.

Practice Tips to Build Confidence

  • Solve mixed-operation questions regularly
  • Write each step clearly (avoid mental shortcuts)
  • Check your work from left to right for ×/÷ and +/− steps
  • Practise exam-style questions to improve speed and accuracy

Need Help with BODMAS?

If your child keeps making order mistakes, gets stuck on multi-step expressions, or loses marks in tests, personalised guidance can help.


At Aussie Math Tutor NSW, we help students understand BODMAS step-by-step, improve accuracy, and build confidence.

  • One-on-one tutoring for NSW students (Year 3–10)
  • Support for school exams, NAPLAN, OC and Selective preparation
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Next step: Book a FREE assessment

Or learn more about our services: Private Maths Tutor Sydney

Frequently Asked Questions about BODMAS

BODMAS stands for Brackets, Orders (like powers or roots), Division, Multiplication, Addition, and Subtraction. Basically, it’s just the order we follow to solve maths problems properly!

In NSW, kids usually get introduced to BODMAS around Year 5, when they start learning how to tackle the order of operations in maths.

We use BODMAS in maths so everyone solves things in the same order and gets the right answer. Without it, people would do sums in different ways and end up with different results—BODMAS keeps it all consistent.

If you don’t follow BODMAS, you’ll likely end up with the wrong answer because the order matters. Without it, you might add or multiply in the wrong sequence, and different people would get different results from the same problem. It’s all about keeping things consistent.

In Australia, we use BODMAS, which stands for Brackets, Orders, Division, Multiplication, Addition, and Subtraction. It’s basically the same as BIDMAS (where “Orders” are called “Indices”) and PEMDAS (where “Brackets” are called “Parentheses”). They all follow the same order of operations, just with different names.

Because NSW follows the Australian curriculum, students here learn BODMAS—just like the rest of Australia. It’s our standard order of operations for solving maths problems consistently.

In Selective Exams, students use the BODMAS rule—Brackets, Orders, Division, Multiplication, Addition, and Subtraction. It ensures that all multi-step maths problems are solved in the correct order, just as students are taught in NSW schools.

A simple way to remember BODMAS is to break it down into its parts: Brackets first, then Orders (like powers), followed by Division and Multiplication (left to right), and finally Addition and Subtraction (left to right). With practice, you’ll get used to the order, and many people simply remember the acronym as a handy guide.

To avoid mistakes, always work step by step and write each stage down. Start with brackets first, then handle any powers or roots before dividing or multiplying from left to right, and finally add or subtract in order. Double-check each step before moving on, and if the expression seems tricky, take your time—rushing leads to most errors!

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