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Questions and Answers
What is the correct result of the expression $12 imes 3 ext{ } ext{/ } ext{ } 4$?
What is the value of the expression $7 + 2 ext{ } ext{/ } ext{ } 2 - 3$?
Which of the following represents the order of operations according to BODMAS?
For the expression $10 - 2 + 4 ext{ } ext{/ } ext{ } 2$, what is the correct final result?
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What is the outcome of the expression $8 ext{ } ext{/ } ext{ } 2 imes 3$?
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What is the correct solution to the expression $5 + 6 - 4 ext{ } ext{/ } ext{ } 2$?
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What is the correct answer for the expression $3 imes 4 - 6 + 5$?
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How should you approach solving the expression $15 - 3 imes 2 + 4$?
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What is the result of the expression $20 ext{ } ext{/ } ext{ } 5 imes 2 + 8$?
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Study Notes
BODMAS Overview
- BODMAS is an acronym that defines the order of operations in mathematics:
- Brackets
- Orders (i.e., powers and square roots, etc.)
- Division
- Multiplication
- Addition
- Subtraction
Division and Multiplication
- Rule: Operations should be performed from left to right.
- Importance:
- Both division and multiplication have the same level of priority.
- When encountered in an expression, perform them in the order they appear from left to right.
Example:
- Expression: ( 8 \div 4 \times 2 )
- Calculation: Perform ( 8 \div 4 = 2 )
- Then, ( 2 \times 2 = 4 )
Addition and Subtraction
- Rule: Like division and multiplication, addition and subtraction are performed from left to right.
- Importance:
- Addition and subtraction also have the same level of priority.
- They are the final operations to be carried out in an expression.
Example:
- Expression: ( 5 + 3 - 2 )
- Calculation: Perform ( 5 + 3 = 8 )
- Then, ( 8 - 2 = 6 )
Summary of Operations Order
- Solve expressions within brackets first.
- Handle any orders (exponents, roots, etc.).
- Perform all divisions and multiplications from left to right.
- Finally, perform all additions and subtractions from left to right.
Key Points
- Follow BODMAS to ensure correct results in calculations.
- Always handle operations of the same rank (division/multiplication, addition/subtraction) from left to right to avoid errors.
BODMAS Order of Operations
- BODMAS is an acronym representing the order of operations in mathematics: Brackets, Orders, Division/Multiplication, Addition/Subtraction.
Division & Multiplication
- Division and multiplication have equal priority in BODMAS.
- When encountered together, calculations are performed from left to right.
Addition & Subtraction
- Addition and subtraction also have equal priority in BODMAS.
- When encountered together, calculations are performed from left to right.
Summary of BODMAS Rule
- Solve expressions within brackets first.
- Calculate any orders, such as exponents and roots, next.
- Perform division and multiplication from left to right.
- Finally, perform addition and subtraction from left to right.
Key Points
- Following BODMAS ensures accurate calculations.
- Completing operations of equal rank, such as division and multiplication, from left to right avoids errors.
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Description
This quiz covers the BODMAS rules which dictate the order of operations in mathematics. It includes explanations of the importance of division, multiplication, addition, and subtraction, as well as examples to illustrate each concept. Perfect for reinforcing your understanding of mathematical operations!
