Grade 7 | Unit 4 | Lesson 13: Measurement Error | Practice Problems

The depth of a lake is 15.8 m. Jada accurately measured the depth of the lake to the nearest meter. What measurement did Jada get?

• 16 m

• 15 m

• 14 m

• 17 m

The depth of a lake is 15.8 m. By how many meters does the measured depth differ from the actual depth?

• 0.2 m

• 1.0 m

• 0.5 m

• 1.5 m

The depth of a lake is 15.8 m. Express the measurement error as a percentage of the actual depth.

• 1.27%

• 0.2%

• 2%

• 12%

A watermelon weighs 8,475 grams. A scale measured the weight with an error of 12% under the actual weight. What was the measured weight?

• 7,458 grams

• 8,000 grams

• 7,000 grams

• 9,000 grams

• 331.5 degrees Fahrenheit

• 325 degrees Fahrenheit

• 330 degrees Fahrenheit

• 335 degrees Fahrenheit

• Approximately 74.5 degrees Fahrenheit

• 76 degrees Fahrenheit

• 78 degrees Fahrenheit

• 80 degrees Fahrenheit

Fill in the table for side length and area of different squares. Is the relationship between the side length of a square and the area of a square proportional?

• No

• Yes