The difference of two whole numbers is not necessarily a whole number. The statement whole numbers are closed under subtraction is an incorrect statement.
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Similar Questions
Q1
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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Q2
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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Q3
Question 3
The numerical expression 38+(−5)7=−1956 shows that:
(a) rational numbers are closed under addition.
(b) rational numbers are not closed under addition.
(c) rational numbers are closed under multiplication.
(d) addition of rational numbers is not commutative.
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Q4
Question 77
Rational numbers are closed under addition and multiplication but not under subtraction.
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Q5
Question 77 Rational numbers are closed under addition and multiplication but not under subtraction.