Add Subtract Multiple Divide Scientific Notation Word Problems

Add using scientific notation.
(5.2 x 10⁷) + (3.01 x 10⁴)

• 5.20301 x 10¹¹

• 520301 x 10⁷

• 5.20301 x 10⁷

• 5.20301 x 10⁸

Write the answer in scientific notation.
7.3 x 10⁵  +   3.7 x 10⁵  =

• 11.0 x 10⁵

• 1.1 x 10¹⁰

• 1.10 x 10¹¹

• 1.1 x 10 ⁶

Write the answer in scientific notation.
4.1 x 10⁵ +   5.5 x 10⁶  =

• 5.91 x 10⁶

• 9.6 x 10⁵

• 9.6 x 10¹¹

• 4.65 x 10⁵

(2.8 x 10⁸)+(5.4 x 10⁹)

• 5.68 x 10⁹

• 5.69 x 10⁹

• 5.67 x 10⁹

• 5.70 x 10⁹

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

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

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

c

d

e

b

a

Find the combined mass of Earth and Venus. Earth is approximately 5.9 x 10²⁴ kg and Venus is approximately 4.9 x 10²⁴ kg. To solve we should...

• Add

• Subtract

• Multiply

• Divide

In 2012, NYC’s population was about 8.1 × 10⁶ and Los Angeles' population was about 3.8 × 10⁶. What is the population of these two cities combined?

*THE FIRST FACTOR HAS TO BE BETWEEN 1 - 9.9

• 1.19 x 10^-7

• 1.19 x 10⁷

• 11.9 x 10⁶

• 1.19 x 10⁶