Primary 5 · Mathematics · Order of Operations
Order of Operations questions for Primary 5 Maths
10 questions to work through online. Answer and you get the working straight away, then a score at the end. No sign-up, and you can retake it as often as you like.
- Multiplication before addition
- Brackets first
- Division before subtraction
- Two operations of equal rank
- Brackets and multiplication
- Multiplication before subtraction
- Nested brackets
- Mixed operations
- Choosing where brackets go
Answers and explanations for all 10 questions
Every answer with the reasoning behind it. Worth reading after you have tried the set — or on its own, if you are a parent marking it.
8 + 5 × 3 = ?
Answer: 23
Multiplication comes first: 5 × 3 = 15, then 8 + 15 = 23.
(12 − 4) × 6 = ?
Answer: 48
Brackets first: 12 − 4 = 8, then 8 × 6 = 48.
40 − 18 ÷ 3 = ?
Answer: 34
Division comes first: 18 ÷ 3 = 6, then 40 − 6 = 34.
60 ÷ 5 × 2 = ?
Answer: 24
Division and multiplication rank equally, so work left to right: 60 ÷ 5 = 12, then 12 × 2 = 24.
3 × (7 + 5) − 10 = ?
Answer: 26
Brackets first: 7 + 5 = 12. Then 3 × 12 = 36, and 36 − 10 = 26.
100 − 7 × 9 = ?
Answer: 37
Multiplication first: 7 × 9 = 63, then 100 − 63 = 37.
2 × (30 − (4 + 6)) = ?
Answer: 40
Innermost bracket first: 4 + 6 = 10, then 30 − 10 = 20, then 2 × 20 = 40.
45 ÷ 9 + 6 × 4 = ?
Answer: 29
Do both ÷ and × first: 45 ÷ 9 = 5 and 6 × 4 = 24, then 5 + 24 = 29.
Where must brackets go to make 4 + 6 × 5 = 50 true?
Answer: (4 + 6) × 5
(4 + 6) × 5 = 10 × 5 = 50.
72 ÷ (2 + 7) × 3 = ?
Answer: 24
Bracket first: 2 + 7 = 9. Then left to right: 72 ÷ 9 = 8, and 8 × 3 = 24.