how many whole numbers are there between 81 and 101
Answers
Answer:
19 whole numbers are between 81 and 101.
Step-by-step explanation:
Like the natural numbers, {Z} is closed under the operations of addition and multiplication, that is, the sum and product of any two integers is an integer. However, with the inclusion of the negative natural numbers (and importantly, 0), {Z}, unlike the natural numbers, is also closed under subtraction.
The integers form an unital ring which is the most basic one, in the following sense: for any unital ring, there is a unique ring homomorphism from the integers into this ring. This universal property, namely to be an initial object in the category of rings, characterizes the ring {Z}.
{Z} is not closed under division, since the quotient of two integers (e.g., 1 divided by 2) need not be an integer. Although the natural numbers are closed under exponentiation, the integers are not (since the result can be a fraction when the exponent is negative).
Hence, 19 whole numbers are between 81 and 101
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