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When you go to a store and you add stuff to your shopping cart, and if you have limited money, you should use addition so that you know how much those will cost. Then when it cost more than you thought, you "subtract" the price of a random item by putting it back to the shelf so that the cost would match the amount you have.
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Is the set of real numbers closed under addition?
Yes. The set of real numbers is closed under addition, subtraction, multiplication. The set of real numbers without zero is closed under division.
Is subtraction an identity property?
Subtraction is not an identity property but it does have an identity property. The identity is 0 and each number is its own inverse with respect to subtraction. However, this is effectively the same as the inverse property of addition so there is no real need to define it as a separate property.
Which set of numbers is closed under subtraction?
A set of real numbers is closed under subtraction when you take two real numbers and subtract , the answer is always a real number .
How can you apply division in real life situation?
Dividing up pizza slices amongst friends
How can you use economics in a real life situation?
Economics is all about real life situations. All resources are limited and economics is simply about making decisions to use those resources efficiently.
