Scientific Notation Word Problems

The dimensions of an office building are 1.5 x 10² feet by 1.35 x 10³ feet. What is the perimeter of the base of the building, in feet?

• 50 x 10³

• 85 x 10 ⁵

• 00 x 10 ³

• 70 x 10 ⁵

Tags

CCSS.8.EE.A.4

The Diplodocus dinosaur is believed to have become extinct approximately 1.38x10⁸ years ago.  The Oviraptor is believed to have become extinct approximately 7x10⁷ years ago.  How many years were there between the extinction of these two dinosaur types?

• 6.8 x 10⁸

• 6.8 x 10⁹

• 68 x 10⁸

• 6.8 x 10⁷

Tags

CCSS.8.EE.A.4

The US spends an average of 1.02x10⁴ dollars on each student per year.  There are about 7.6x10⁷ students in the US.  About how much money total is spent on students per year?

• 7.752 x 10¹¹

• 7.752 x 10²⁸

• 8.62 x 10¹¹

• 8.62 x 10²⁸

Tags

CCSS.8.EE.A.4

As part of a community service project, a class planted 7x10⁵  trees in a year.  If there are 3.5x10³ students in the school, how many trees did each student plant?

• 2 x 10⁸

• 2 x 10²

• 3.5 x 10⁸

• 3.5 x 10²

Tags

CCSS.8.EE.A.4

As part of a community service project,

a school planted 7x10⁵ trees in a year.

If there are 3.5x10³ students in the school,

approximately how many trees did

each student plant?

• 703 trees per student

• 695 trees per student

• 245 trees per student

• 200 trees per student

Tags

CCSS.8.EE.A.4

A factory can make 3 × 10⁴ t-shirts per day,

how many t-shirts will it make in 2.5 ×10² days?

(3 × 10⁴ ) ( 2.5 × 10²)

• 7,500,000 shirts

• 75,000,000 shirts

• 6,000,000 shirts

• 5,500,000 shirts

Tags

CCSS.8.EE.A.4

Find the combined mass of Earth and Venus.

• 1.08 × 10⁴⁸ kg

• 10.8 × 10⁴⁸ kg

• 1.08 × 10²⁵ kg

• 10.8 × 10²⁴ kg

Tags

CCSS.8.EE.A.4

The US spends an average of 1.02x10⁴

dollars on each student per year.

There are about 7.6x10⁷ students in the US.

About how much money total is spent on

students per year?

• 7.6 x 10⁷

  dollars per year

• 7.598 x 10⁶

  dollars per year

• 7.7 x 10¹¹

  dollars per year

• 7.45 x 10³

  dollars per year

Tags

CCSS.8.EE.A.4

In 1985 Earth had 4.9 ×10⁹ people living on it and in 2005, Earth had 6.4 ×10⁹ living on it. How many more people inhabited Earth in 2005 than in 1985? To solve we should...

• Add

• Subtract

• Multiply

• Divide

Tags

CCSS.8.EE.A.4

The population of Algeville is 1.3 x 10⁴. The population of Mathville is 5.6 x 10³. How many more people are there in Algeville?

• 4.3 x 10²

  more people

• 7.4 x 10³

  more people

• 1.86 x 10⁴

  more people

• 7.28 x 10⁷

  more people

Tags

CCSS.8.EE.A.4