measurment

# measurment - ,which .Youwritea .Thenumberofm

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Scientists and engineers often work with very large or very small numbers, which  are more easily expressed in exponential form or  scientific notation . You write a  very large number in scientific notation by moving the decimal point to the left  until only one digit remains to the left. The number of moves of the decimal point  gives you the exponent. For example: 3,454,000 = 3.454 x 106 For very small numbers, you move the decimal point to the right until only one  digit remains to the left of the decimal point. The number of moves to the right  gives you a negative exponent: 0.0000005234 = 5.234 x 10-7 Addition Example Using Scientific Notation Addition and subtraction problems are handled the same way. 1. Write the numbers to be added or subtracted in scientific notation. 2.

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measurment - ,which .Youwritea .Thenumberofm

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