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Subjects>Math>Math & Arithmetic

Are real numbers closed under addition and subtraction?

Anonymous

∙ 14y ago

Updated: 9/18/2023

Real numbers are closed under addition and subtraction. To get a number outside the real number system you would have to use square root.

Wiki User

∙ 14y ago

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Continue Learning about Math & Arithmetic

Are rational numbers closed under division multiplication addition or subtraction?

Rational numbers are closed under addition, subtraction, multiplication. They are not closed under division, since you can't divide by zero. However, rational numbers excluding the zero are closed under division.

Are polynomial expressions closed under subtraction?

Yes they are closed under multiplication, addition, and subtraction.

What is always true about whole numbers?

They form a closed set under addition, subtraction or multiplication.

Is there a subset of the natural numbers that is closed for addition?

Yes. The entire set of natural numbers is closed under addition (but not subtraction). So are the even numbers (but not the odd numbers), the multiples of 3, of 4, etc.

What is the set of whole numbers closed by?

If you mean the set of non-negative integers ("whole numbers" is a bit ambiguous in this sense), it is closed under addition and multiplication. If you mean "integers", the set is closed under addition, subtraction, multiplication.

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