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Explain how the subtraction of integers is related to the addition of integers?
Subtraction of integers is essentially addition of integers except the second integer is inverted. For example: 5 + 3 = 8 is a simple addition of integers. 5 - 3 = 5 is a simple subtraction of integers. It can be expressed by inverting the second value (the one right after the subration sign) and then switching the subtraction sign to an addition sign. So it would look like: 5 + (-3) = 5. Note that (-3) is the opposite of 3. So to do a more confusing subtraction problem like: 55 - (-5), we could rewrite this as: 55 + -(-5). From here it's easy to see that the two negatives cancel out. 55 + 5 = 60.
Who discovered addition and subtraction signs in mathematics?
Asimoth masket in year 457 B.C.
How is estimation helpful when adding and subtracting decimals?
It is difficult to answer the question because, for addition or subtraction, it is often easier to obtain the exact answer! If you line up the decimal points and then follow the rules of addition or subtraction - exactly as they would apply to whole numbers - you will get the correct answer!Estimation may be useful to check your answer if you are poor at addition or subtraction of integers. But, if that is the case, your estimate is equally likely to be wrong!
Which calculations come last in the order of operations?
addition and subtraction
What is arthmetic?
Arithmetic (watch the spelling) refers to the basic math taught in primary school: addition, subtraction, multiplication and division of integers, fractions, and decimals.
