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Standard VII
Mathematics
Question

Which of the following is an incorrect statement?
  1. Integers are not closed under division
  2. Integers are not closed under multiplication
  3. Integers are closed under addition
  4. Integers are closed under subtraction

A
Integers are not closed under division
B
Integers are not closed under multiplication
C
Integers are closed under addition
D
Integers are closed under subtraction
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Similar Questions
Q1

Which of the following is not true?
(i) Whole numbers are closed under subtraction.
(ii) Integers are not closed under division.
(iii) Rational numbers are closed under division.


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Q2
Which of the following is not true?
(a) Rational numbers are closed under addition.
(b) Rational numbers are closed under subtraction.
(c) Rational numbers are closed under multiplication.
(d) Rational numbers are closed under division.
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Q3

Question 4
Which of the following is not true?
(a) rational numbers are closed under addition.
(b) rational numbers are closed under subtraction.
(c) rational numbers are closed under multiplication.
(d) rational numbers are closed under division.

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Q4
Which of the following statements is/are incorrect?
(i) Whole numbers are closed under subtraction.
(ii) Integers are not closed under division.
(iii) Rational numbers are closed under division.
(Hint: A set of numbers is said to be closed under an operation if the result of the operation between the operands belongs to the same set.)
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Q5

Rational numbers are closed under addition and multiplication but not under subtraction.


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