What is the value of (33^2-489)?
Answer and explanation
Correct answer: 600
First evaluate the exponent: \(33^2 = 33 \times 33 = 1089\). Then \(1089 - 489 = 600\). Therefore, the correct answer is 600. The value 1089 is only \(33^2\); the subtraction of 489 must still be performed. Exam tip: In a mixed expression, evaluate exponents before addition or subtraction.
Frequently asked questions
What is the correct answer to this question?
600
Why is this the correct answer?
First evaluate the exponent: \(33^2 = 33 \times 33 = 1089\). Then \(1089 - 489 = 600\). Therefore, the correct answer is 600. The value 1089 is only \(33^2\); the subtraction of 489 must still be performed. Exam tip: In a mixed expression, evaluate exponents before addition or 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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