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Class 9MathematicsNumber SystemsExponentsHard
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What is the value of (10^3-9^2)?

Answer and explanation

Correct answer: 919

Evaluate the powers first: \(10^3=1000\) and \(9^2=81\). Therefore, \(10^3-9^2=1000-81=919\), so option B is correct. Exam tip: calculate the powers before performing the subtraction.

Related tags

ExponentsNumber SystemsInteger OperationsOrder Of OperationsMathematicsClass 9 Mcq
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10 more MCQs
  1. 1If A={x:x is prime and 10<x<30}, which is its roster form?
  2. 2If 0.2020020002... has no fixed repetition, what type of number is it?
  3. 3If 0.3030030003... has no fixed repetition, what type of number is it?
  4. 4If (x=\sqrt{11}) then what is (x^2+5)?
  5. 5If (x=\sqrt{3}) then what is (x^2+x^2)?
  6. 6If (x=\sqrt{2}), what is (x^2)?
  7. 7What is the value of (2^3)?
  8. 8What is the value of (5^2)?
  9. 9What is the value of (10^2)?
  10. 10What is the value of (3^2)?
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