What is the value of \(20-5\cdot3\)?
Answer and explanation
Correct answer: 5
According to the order of operations, multiplication is performed before subtraction. Thus, \(5\cdot3=15\), and then \(20-15=5\). Option B is only the intermediate product, not the final value. Exam tip: follow brackets, exponents, multiplication/division, and addition/subtraction in that order.
Frequently asked questions
What is the correct answer to this question?
5
Why is this the correct answer?
According to the order of operations, multiplication is performed before subtraction. Thus, \(5\cdot3=15\), and then \(20-15=5\). Option B is only the intermediate product, not the final value. Exam tip: follow brackets, exponents, multiplication/division, and addition/subtraction in that order.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Polynomials. Topic: Operations on real numbers and the laws of exponents.
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