Feedback Friday, Week #1 (SS1-3, M1: L1-4)

A manufacturer made 7,234 boxes of coffee stirrers. Each box contains 1,000 stirrers. Did they make 723,400 stirrers?

• True

• False

A microscope magnifies an object to appear 100 times its actual size. If a tiny insect is 0.095 cm long, it will appear as 9.5 cm through the microscope.

• True

• False

On a map, the perimeter of a park is 0.251 meters. The actual perimeter of the park is 1,000 times as large. Is the actual perimeter of the park 251 meters?

• True

• False

Canada has a population that is about 1/10 as large as the United States, meaning if Canada's population is about 32 million, then the United States has about 320 million people.

• True

• False

Florida has a land area 1/20 the size of Alaska's 1,700,000 square kilometers, making it 85,000 square kilometers.

• True

• False

Is the correct standard form conversion 9 × 10^5 = 900,000?

• True

• False

After a lesson on exponents, Tia went home and said to her mom, "I learned that 10^5 is the same as 40,000." She has made a mistake in her thinking. Is it correct that 10^5 equals 100,000?

• True

• False

Is 247 x 10^1 equal to 2470 and 247 x 10^0 equal to 247?

• True

• False

The length of the bar for a high jump competition must always be 4.75 m, which is equal to 4750 mm.

• True

• False

A honey bee's length measures 1 cm. Express this measurement in meters. Explain your thinking. Include an equation with an exponent in your explanation.