Math & Physics Problems Wikia
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Problem

Sigfigs.PNG

Perform each calculation and express the answers in scientific notation with the correct number of significant figures (sig-figs).

Part 1

Part 2

Part 3

Solution

Part 1

The least uncertain digit is the tenths digit. So round each number to the nearest tenths.

The answer in scientific notation is .

Part 2

The number 237050 has five sig-figs. The number 3.41 has three sig-figs. So round the product to three sig-figs.

The answer in scientific notation is .

Part 3

The number 435.00 has five sig-figs. The number 0.03100 has four sig-figs. So round the product to four sig-figs.

The answer in scientific notation is .

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