These worksheets help high school students understand the precision and accuracy of any measurement. First, find a decimal place and then apply the Atlantic-Pacific Rule. Rounding off “so many” significant numbers is done by counting the digits on the Pacific side (left-right), beginning with the null decimal digit. Then, add the remainder. For whole numbers, it’s from the Atlantic side (right-to-left). Rounding allows you to decide which numbers to drop. The last number indicates whether it must be rounded up/down. For a headstart, download our free rounding-to-sig-digs worksheets.
