MCQ Questions for Class 8 Maths Chapter 1 Rational Numbers with Answers Advertisement 1. Which of the following statements is false ?Natural numbers are closed under additionWhole numbers are closed under additionIntegers are closed under additionRational numbers are not closed under additionQuestion 1 of 202. Which of the following statements is false ?Natural numbers are closed under subtractionWhole numbers are not closed under subtractionIntegers are closed under subtractionRational numbers are closed under subtractionQuestion 2 of 203. Which of the following statements is true ?Natural numbers are closed under multiplicationWhole numbers are not closed under multiplicationIntegers are not closed under multiplicationRational numbers are not closed under multiplicationQuestion 3 of 204. Which of the following statements is true ?Natural numbers are closed under divisionWhole numbers are not closed under divisionIntegers are closed under divisionRational numbers are closed under divisionQuestion 4 of 205. Which of the following statements is false ?Natural numbers are commutative for additionWhole numbers are commutative for additionIntegers are not commutative for additionRational numbers are commutative for additionQuestion 5 of 206. Which of the following statements is true ?Natural numbers are commutative for subtractionWhole numbers are commutative for subtractionIntegers are commutative for subtractionRational numbers are not commutative for subtractionQuestion 6 of 207. Which of the following statements is false ?Natural numbers are commutative for multiplicationWhole numbers are commutative for multiplicationIntegers are not commutative for multiplicationRational numbers are commutative for multiplicationQuestion 7 of 208. Which of the following statements is true ?Natural numbers are commutative for divisionWhole numbers are not commutative for divisionIntegers are commutative for divisionRational numbers are commutative for divisionQuestion 8 of 209. Which of the following statements is true ?Natural numbers are associative for additionWhole numbers are not associative for additionIntegers are not associative for additionRational numbers are not associative for additionQuestion 9 of 2010. Which of the following statements is true ?Natural numbers are associative for subtractionWhole numbers are not associative for subtractionIntegers are associative for subtractionRational numbers are associative for subtractionQuestion 10 of 2011. Which of the following statements is true ?Natural numbers are not associative for multiplicationWhole numbers are not associative for multiplicationIntegers are associative for multiplicationRational numbers are not associative for multiplicationQuestion 11 of 2012. Which of the following statements is true ?Natural numbers are associative for divisionWhole numbers are associative for divisionIntegers are associative for divisionRational numbers are not associative for divisionQuestion 12 of 2013. 0 is nota natural numbera whole number an integera rational numberQuestion 13 of 2014. 1/2 is 2a natural numbera whole numberan integera rational numberQuestion 14 of 2015. a + b = b + a is calledcommutative law of additionassociative law of additiondistributive law of additionnone of theseQuestion 15 of 2016. a × b = b × a is calledcommutative law for addition commutative law for multiplicationassociative law for additionassociative law for multiplicationQuestion 16 of 2017. (a + b) + c = a + (b + c) is calledcommutative law for multiplicationcommutative law for additionassociative law for additionassociative law for multiplicationQuestion 17 of 2018. a × (b × c) = (a × b) × c is calledassociative law for additionassociative law for multiplicationcommutative law for additioncommutative law for multiplicationQuestion 18 of 2019. a(b + c) = ab + ac is calledcommutative lawassociative lawdistributive lawnone of theseQuestion 19 of 2020. The additive identity for rational numbers is1-10none of theseQuestion 20 of 20 Loading...
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