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Maths Quiz - Level 3-4 Algebra - BODMAS, BIDMAS, PEMDAS (Questions)

Learn how BODMAS (also called BIDMAS or PEMDAS) orders operations. Use brackets carefully, follow indices, and keep calculations tidy—skills that make KS3 algebra faster, clearer, and mistake-free.

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(quiz starts below)

Fascinating Fact:

In real life, builders use BODMAS when calculating material costs, because forgetting brackets can change prices dramatically.

In KS3 Maths, you use an agreed order of operations to keep calculations consistent: brackets first, then indices, followed by multiplication/division, and finally addition/subtraction. This rule prevents ambiguity in algebra and real-world problem solving.

Key Terms

  • BODMAS / BIDMAS / PEMDAS: A rule that sets the order to do calculations so everyone gets the same answer.
  • Indices (Orders): Powers such as 3² or x³; evaluate these immediately after brackets.
  • Brackets: Symbols like ( ) that group parts of a calculation to be worked out first.

Frequently Asked Questions (Click to see answers)

What does BODMAS/BIDMAS mean in KS3 maths?

BODMAS/BIDMAS states the order for calculations: Brackets, Orders (indices), Division and Multiplication, then Addition and Subtraction. Everyone follows it to avoid conflicting answers.

Is BODMAS the same as PEMDAS?

Yes. PEMDAS is the US version: Parentheses, Exponents, Multiply/Divide, Add/Subtract. It matches BODMAS; only the wording differs, not the order.

How do I apply BODMAS in algebra problems?

Work inside brackets first, handle indices, then multiply or divide from left to right, and finally add or subtract from left to right, keeping terms tidy.

Try These Related Quizzes

1. What is the correct sequence for mathematical operations?
[ ] Addition, Brackets, Division, Order, Multiplication, Subtraction
[ ] Brackets, Division, Addition, Order, Multiplication, Subtraction
[ ] Brackets, Order, Division, Multiplication, Addition, Subtraction
[ ] Subtraction, Addition, Multiplication, Division, Order, Brackets
2. What does the O stand for in BODMAS?
[ ] Odd numbers
[ ] Organise
[ ] Order
[ ] Onion
3. What is the value of 2 + 3 x 5?
[ ] 10
[ ] 15
[ ] 17
[ ] 25
4. What is the value of 2 x 3 + 5?
[ ] 10
[ ] 11
[ ] 15
[ ] 16
5. What is the value of 3x2 when x = 2?
[ ] 3
[ ] 6
[ ] 9
[ ] 12
6. What is the value of (3x)2 when x = 2?
[ ] 6
[ ] 12
[ ] 36
[ ] 48
7. What is the value of (3 + a)(4 + a) when a = 4?
[ ] 56
[ ] 65
[ ] 86
[ ] 68
8. If x = 5, which of these calculations is correct?
[ ] 6 + x + 7 - 3 + x - 2 = 24
[ ] 6x + 7 - (3x - 2) = 24
[ ] (6x + 7) (3x - 2) = 24
[ ] 6x + 7 - 3x - 2 = 24
9. What is the value of 2a3 - a, when a = 4?
[ ] 118
[ ] 120
[ ] 122
[ ] 124
10. What is the value of x3 / (4y - 7), when x = 5 and y = 8?
[ ] 3
[ ] 4
[ ] 5
[ ] 6

You can find more about this topic by visiting BBC Bitesize - BIDMAS

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Maths Quiz - Level 3-4 Algebra - BODMAS, BIDMAS, PEMDAS (Answers)
1. What is the correct sequence for mathematical operations?
[ ] Addition, Brackets, Division, Order, Multiplication, Subtraction
[ ] Brackets, Division, Addition, Order, Multiplication, Subtraction
[x] Brackets, Order, Division, Multiplication, Addition, Subtraction
[ ] Subtraction, Addition, Multiplication, Division, Order, Brackets
They don't call it BODMAS for nothing!
2. What does the O stand for in BODMAS?
[ ] Odd numbers
[ ] Organise
[x] Order
[ ] Onion
Orders are squares, cubes or any other powers
3. What is the value of 2 + 3 x 5?
[ ] 10
[ ] 15
[x] 17
[ ] 25
Work out the multiplication sign BEFORE the addition sign
4. What is the value of 2 x 3 + 5?
[ ] 10
[x] 11
[ ] 15
[ ] 16
Work out the multiplication sign BEFORE the addition sign
5. What is the value of 3x2 when x = 2?
[ ] 3
[ ] 6
[ ] 9
[x] 12
3 x (2 x 2)
6. What is the value of (3x)2 when x = 2?
[ ] 6
[ ] 12
[x] 36
[ ] 48
(3 x 2)(3 x 2)
7. What is the value of (3 + a)(4 + a) when a = 4?
[x] 56
[ ] 65
[ ] 86
[ ] 68
7 x 8
8. If x = 5, which of these calculations is correct?
[ ] 6 + x + 7 - 3 + x - 2 = 24
[x] 6x + 7 - (3x - 2) = 24
[ ] (6x + 7) (3x - 2) = 24
[ ] 6x + 7 - 3x - 2 = 24
30 + 7 - 13
9. What is the value of 2a3 - a, when a = 4?
[ ] 118
[ ] 120
[ ] 122
[x] 124
(2 x 64) - 4
10. What is the value of x3 / (4y - 7), when x = 5 and y = 8?
[ ] 3
[ ] 4
[x] 5
[ ] 6
125 / 25
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