Measurement-scientific notation. 1)count the number of places from the "decimal point" to the area between the first and second digits 2) the remaining number is the coefficent 3) multiply by 10 raised to the number of digits. Rounding- count the number of digits starting at the first significant number. Look at the number to the right: if 5 or greater round up, if 4 or lower stay the same

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