Which property allows us to write 5 - 19 as 19 - 5 -

The correct option is B Commutative property nbsp;Multiplication is commutative for rational numbers. i.e., For any two rational numbers a and b, a × b = b × ...

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Standard VIII

Mathematics

Closure Property of Rational Numbers

Which propert...

Question

Which property allows us to write 5 x 19 as 19 x 5?

Associative property

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Commutative property

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Closure property

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Distributive property

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Solution

The correct option is B Commutative property
Multiplication is commutative for rational numbers.
i.e., For any two rational numbers a and b, a × b = b × a.
Here, 5 and 19 are rational numbers(since all integers are rational numbers) and hence commutativity of mutiplication must hold true for mutiplication of 5 and 19 as well.
i.e., 5 x 19 = 19 x 5

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Similar questions

Q. Which property allows us to write 5 x 19 as 19 x 5?

Which property of whole numbers is used to write 131 + 19 = 19 + 131

Q. Question 5(iii)
Name the property under multiplication used in each of the following:

\frac{- 19}{29} \times \frac{29}{- 19} = 1

Q. Name the property under multiplication used in each of the following:

\frac{- 4}{5} \times 1 = 1 \times \frac{- 4}{5} = - \frac{4}{5}

ii)

- \frac{13}{17} \times \frac{- 2}{7} = \frac{- 2}{7} \times \frac{- 13}{17}

iii)

\frac{- 19}{29} \times \frac{29}{- 19} = 1

Question 5(h)
Find the product, using suitable properties:
$(- 57) \times (- 19) + 57$

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