Back to Choose appropriate accuracy — Problem 2 · Task Set 6

Exercises: Choose a Level of Accuracy Appropriate to Limitations on Measurement When Reporting Quantities

Work through each section in order. Show your work where indicated. Remember: the goal is to report the right number of digits, not the most digits.

Grade 9·22 problems·~40 min·Common Core Math - HS Number and Quantity·standard·hsn-q-a-3
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Fluency Practice

1.

A rectangle is measured as 4.24.2 m wide (2 significant figures) and 6.846.84 m long (3 significant figures). A calculator gives the area as 28.72828.728 m². To how many significant figures should you report the area?