Order of operations (BIDMAS)

Use BIDMAS (Brackets, Indices, Division/Multiplication, Addition/Subtraction) to solve mixed calculations

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1
What does the B in BIDMAS stand for? A) Big numbers B) Brackets C) Base ten D) Below the line
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2
Calculate: 2 + 3 × 4 = ___ 2 + 3 × 4 = ___
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3
Is this statement true or false? (2 + 3) × 4 = 20. A) True B) False
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4
What is 10 - 2 × 3? A) 4 B) 8 C) 24 D) 30
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5
Calculate: 12 ÷ (1 + 2) + 5 = ___ 12 ÷ (1 + 2) + 5 = ___
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6
What is 20 - 3 × (4 + 2)? A) 2 B) 18 C) 102 D) 120
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7
Put the steps for 5 + 2 × (6 - 1) in the correct order. Put these in order: Brackets: 6 - 1 = 5, Multiplication: 2 × 5 = 10, Addition: 5 + 10 = 15
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8
Calculate: 4² + 3 × 2 = ___ 4² + 3 × 2 = ___
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9
What is (8 - 3)² + 5 × 2? A) 25 B) 35 C) 45 D) 55
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10
Is this statement true or false? 6 + 4 ÷ 2 × 3 = 12. A) True B) False
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Answer key

Order of operations (BIDMAS) · for parents and teachers

1
Brackets
BIDMAS = Brackets, Indices, Division/Multiplication, Addition/Subtraction.
2
14
Do 3 × 4 = 12 first, then 2 + 12 = 14.
3
True
Do (2 + 3) = 5 first, then 5 × 4 = 20. The statement is true.
4
4
2 × 3 = 6 first, then 10 - 6 = 4.
5
9
Brackets: 1 + 2 = 3. Then 12 ÷ 3 = 4. Finally 4 + 5 = 9.
6
2
(4 + 2) = 6. Then 3 × 6 = 18. Finally 20 - 18 = 2.
7
Brackets: 6 - 1 = 5, Multiplication: 2 × 5 = 10, Addition: 5 + 10 = 15
Brackets, then multiplication, then addition. Final answer is 15.
8
22
4² = 16. Then 3 × 2 = 6. Then 16 + 6 = 22.
9
35
(8 - 3) = 5. Then 5² = 25. Then 5 × 2 = 10. Finally 25 + 10 = 35.
10
True
4 ÷ 2 = 2 first (working left to right), then 2 × 3 = 6, then 6 + 6 = 12. The statement is true.