Scientific Notation Word Problems

Daniel Math Academy · Grade 8 Math

Scientific Notation Word Problems

Skill B.4 · Operations with scientific notation · ★★☆ Medium · Quarter 1

Name

 

Date

 

Score/ 4

Scan for answers

Write each answer in scientific notation.

1. 1
   A country has about $1.16\times 10^{10}$ people. A city has about $5.8\times 10^5$ people. How many times as many people live in the country?
2. 2
   A planet is $2.5\times 10^{10}$ kilometers from its star. A spacecraft travels $5\times 10^4$ kilometers per day. How many days does the trip take?
3. 3
   A country has about $2.5\times 10^{12}$ people. A city has about $5\times 10^4$ people. How many times as many people live in the country?
4. 4
   A country has about $4\times 10^{13}$ people. A city has about $8\times 10^5$ people. How many times as many people live in the country?

Daniel Math Academy · Grade 8 Math

Answer Key

B.4 Scientific Notation Word Problems · ★★☆ Medium

1. 1$2\times 10^4$
2. 2$5\times 10^5$
3. 3$5\times 10^7$
4. 4$5\times 10^7$