What is the value of (40^2-600)?
Answer and explanation
Correct answer: 1000
First evaluate the exponent: \(40^2 = 40 \times 40 = 1600\). Then \(1600 - 600 = 1000\). Therefore, the correct answer is 1000. An option such as 1100 may result from an error in subtraction. Exam tip: In an expression with brackets, calculate the exponent before performing subtraction.
Frequently asked questions
What is the correct answer to this question?
1000
Why is this the correct answer?
First evaluate the exponent: \(40^2 = 40 \times 40 = 1600\). Then \(1600 - 600 = 1000\). Therefore, the correct answer is 1000. An option such as 1100 may result from an error in subtraction. Exam tip: In an expression with brackets, calculate the exponent before performing subtraction.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Number Systems. Topic: Exponents.
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