Adding and Subtracting Scientific Notation Word Problems

Bubba‟s Boot Barn is a favorite stop of visitors to Nashville‟s downtown shopping area. Last year, 2.42 x 10⁵ people visited Bubba‟s. This year it has become an even more popular venue, with 2.53 x 10⁶ visitors. How many more visitors have been to Bubba's this year than last year?

• 2.75 x 10⁶

• 2.288 x 10⁶

• 6.1226 x 10¹¹

• 9.5652 x 10^-2

Tags

CCSS.8.EE.A.4

Jilly Johnson is a fantastic jelly-band bracelet maker. Jilly used 3.73 x 10³ bands last month and this month she used 2.87 x 10³ bands. How many total bands has she used in the past months

• 6.6 x 10³

• 8.6 x 10²

• 1.07051 x 10⁷

• 1.29965 x 10⁰

Tags

CCSS.8.EE.A.4

4.78 x 10⁶ was the largest attendance record of the Polar Bear Express Chilly Football Extravaganza. 3.98 x 10⁶ attended at the last PB Express event. How many more people were in attendance on the record-setting day?

• 8.76 x 10⁶

• 1.90244 x 10¹³

• 8 x 10⁴

• 8 x 10⁵

Tags

CCSS.8.EE.A.4

Jupiter, the largest planet, has a diameter of about 8.8 x 10⁴ miles. Mercury has a diameter of about 3.0 x 10³. What is the difference in their diameters?

• 9.1 x 10⁴

• 2.64 x 10⁸

• 8.5 x 10⁴

• 2.93 x 10¹

Tags

CCSS.8.EE.A.4

In 2009 there were 2.35 x 10⁶ ferrets kept as pets in India. At the same time there were 3.43 x 10⁵ ferrets kept as pets in France. How many pet ferrets were in there in total in those two countries?

• 2.007 x 10⁶

• 8.0605 x 10¹¹

• 6.85 x 10⁰

• 2.693 x 10⁶

Tags

CCSS.8.EE.A.4

Bubba and Fred are having a bubble-blowing contest. The diameter of Bubba‟s bubble is 2.45 x 10^-2 feet. Fred‟s bubble is 3.67 x 10^-2 feet. What is the difference in the diameter of their bubbles?

• 6.17 x 10^-2

• 8.9915 x 10^-4

• 1.22 x 10^-2

• 1.468 x 10⁰

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CCSS.8.EE.A.4

The biggest bowl of mashed potatoes ever made weighed 4.56 x 10⁴ pounds and was created at the Iowa State Fair in 2005. The biggest deep dish pizza ever made was in Chicago in 1998. It weighed a whopping 1.23 x 10⁵ pounds. How much more did the pizza weigh than the bowl of mashed 'taters?

• 7.74 x 10⁵

• 1.686 x 10⁵

• 5.6088 x 10⁹

• 3.7073 x 10^-1

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CCSS.8.EE.A.4

An ant carries a spec of food to his home that is 2.34x10^-3 inches. His wife carries a piece that is 4.56x10^-2. How big are their pieces of food combined?

• 4.326 x 10^-2

• 1.06704 x 10^-4

• 1.948 x 10¹

• 4.794 x 10^-2

Tags

CCSS.8.EE.A.4