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What is the value of (21^2+10^3)?
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Answer and explanation
Correct answer: 1441
Evaluate the powers first: 21^2 = 21 × 21 = 441 and 10^3 = 10 × 10 × 10 = 1000. Therefore, 21^2 + 10^3 = 441 + 1000 = 1441, so option B is correct. In an exam, calculate each power separately before performing the addition.
Frequently asked questions
What is the correct answer to this question?
1441
Why is this the correct answer?
Evaluate the powers first: 21^2 = 21 × 21 = 441 and 10^3 = 10 × 10 × 10 = 1000. Therefore, 21^2 + 10^3 = 441 + 1000 = 1441, so option B is correct. In an exam, calculate each power separately before performing the addition.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Number Systems. Topic: Exponents.
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