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Q: What kind of practical problems have you met that required the use of negative numbers?

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It will still perform the calculation. The SUM function can deal with positive and negative numbers and it will deal with negative numbers correctly. So there will be no problems or errors if there are negative numbers amongst the numbers in the range of cells that it is calculating.

An overdrawn balance on your bank account is a negative number !

Math problemsThis page is used to construct a set of simple arithmetic problems. You can choose the number of problems presented, as well as the types of questions asked. Fill in all of the boxes and then hit the Submit button to generate the problems. Once generated you can print the sheet out for work offline, or you can answer the problems on the computer and have the results graded.AdditionDo you want addition questions?Can numbers to be added be negative?Can results be negative?How many addition problems do you want?How large can the numbers be? SubtractionDo you want subtraction questions?Can numbers to be subtracted be negative?Can results be negative?How many subtraction problems do you want?How large can the numbers be? MultiplicationDo you want multiplication questions?Can numbers to be multiplied be negative?Can results be negative?How many multiplication problems do you want?How large can the numbers be? Division (no remainders)Do you want division questions?Can numbers to be divided be negative?Can results be negative?How many division problems do you want?How large can the numbers be? Division (with remainders)Do you want division questions?Can numbers to be divided be negative?Can results be negative?How many division problems do you want?How large can the numbers be? The following parameters allow you to change the presentation. The default values make is easy for a child to write on the page. Choosing a smaller font size and more problems per line allow more problems to be put onto a printed page. You can enter silly combinations. If you do that, you will get silly output.Font size:Problems per lineThis is will help you with your question. Just remember the simple questions. Do i need to subtract, multiply, divide, or add. Remember also if your doing more advance. What is may goal? Do i need to get "X" alone or "Y" alone.My source (web page) is http://www.armoredpenguin.com/math

The numbers 1,2,3,... etc are called natural numbers or counting numbers. Integers are the natural numbers plus zero plus the negative ( or opposite ) natural numbers. Why do we need negative natural numbers ? For one thing x + 1 = 0 is an equation whose solution is x = -1. We could not solve this equation if we did not have negative integers. So over history these negative numbers came about as a way to solve certain math problems. The numbers 1,2,3,... etc are called natural numbers or counting numbers. Integers are the natural numbers plus zero plus the negative ( or opposite ) natural numbers. Why do we need negative natural numbers ? For one thing x + 1 = 0 is an equation whose solution is x = -1. We could not solve this equation if we did not have negative integers. So over history these negative numbers came about as a way to solve certain math problems.

Whatever is required by the context of the question. Whether or not the number is negative gives no indication as to whether to add or subtract.

No, negative numbers are not in the set of whole numbers.

Two numbers are negative reciprocals if their product is -1. The numbers 1/2 and -2 are negative reciprocals. Their product is -1. This is often seen in problems involving the slopes of two lines. The slopes of perpendicular lines are negative reciprocals. Their product is -1.

No. Some negative numbers are irrational and some are not. Some irrational numbers are negative and some are not.

Where do we see negative numbers

They will be negative numbers as for example -5+(-7) = -12

The product of three negative numbers is negative.

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