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Class 9MathematicsNumber SystemsExponentsMedium
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What is the value of (36^2-696)?

Answer and explanation

Correct answer: 600

First find the square of 36: \(36^2=36\times36=1296\). Then \(1296-696=600\), so the correct answer is 600. The option 650 can result from an error in subtraction. Exam tip: after finding a square, verify the subtraction using column subtraction or a quick mental check.

Related tags

ExponentsNumber SystemsSquaresArithmetic OperationsSubtractionMathematicsClass 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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