과학적 표기법의 덧셈과 뺄셈

Daniel Math Academy · Grade 8 Math

Add & Subtract in Scientific Notation

Skill B.3 · Operations with scientific notation · ★★☆ Medium · Quarter 1

Name

 

Date

 

Score/ 8

Scan for answers

Add or subtract. Write each answer in scientific notation.

1. 1
   $(1\times 10^9)+(8.1\times 10^9)=$ 
2. 2
   $(8.7\times 10^2)-(8.1\times 10^2)=$ 
3. 3
   $(8\times 10^5)+(8.2\times 10^6)=$ 
4. 4
   $(2\times 10^8)-(8.2\times 10^7)=$ 
5. 5
   $(9\times 10^8)-(1.5\times 10^7)=$ 
6. 6
   $(2\times 10^3)+(9.8\times 10^3)=$ 
7. 7
   $(5.9\times 10^9)-(3\times 10^9)=$ 
8. 8
   $(5.8\times 10^9)-(1\times 10^9)=$ 

Daniel Math Academy · Grade 8 Math

Answer Key

B.3 Add & Subtract in Scientific Notation · ★★☆ Medium

1. 1$9.1\times 10^9$
2. 2$6\times 10^1$
3. 3$9\times 10^6$
4. 4$1.18\times 10^8$
5. 5$8.85\times 10^8$
6. 6$1.18\times 10^4$
7. 7$2.9\times 10^9$
8. 8$4.8\times 10^9$