why did we carry out when add two numbers in mathematics?
Answers
Answer:
in elementary arithmetic, a carry is a digit that is transferred from one column of digits to another column of more significant digits. It is part of the standard algorithm to add numbers together by starting with the rightmost digits and working to the left. For example, when 6 and 7 are added to make 13, the "3" is written to the same column and the "1" is carried to the left. When used in subtraction the operation is called a borrow.
Carrying is emphasized in traditional mathematics, while curricula based on reform mathematics do not emphasize any specific method to find a correct answer.[citation needed]
Carrying makes a few appearances in higher mathematics as well. In computing, carrying is an important function of adder circuits.
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Answer:
Mostly because we're doing it wrong. The best, easiest, most accurate way to add numbers is left to right, not right to left. That being said, the numbers that you 'carry' are multiples of ten, created in the addition of numbers in the ones, or tens, or hundreds column. So they are added into their correct place.
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