Adding and Subtracting Scientific Notation

What is the result of adding 3.2 x 10^4 and 2.5 x 10^3 in scientific notation?

• 2.7 x 10^4

• 3.45 x 10^4

• 3.75 x 10^4

• 5.7 x 10^4

Tags

CCSS.8.EE.A.4

Simplify the expression (4.6 x 10^5) - (1.2 x 10^4) in scientific notation.

• 4.48 x 10^5

• 4.58 x 10^5

• 3.4 x 10^5

• 5.2 x 10^5

Tags

CCSS.8.EE.A.4

Calculate the sum of (7.8 x 10^2) + (2.3 x 10^1) in scientific notation.

• 2.3 x 10^2

• 7.8 x 10^3

• 8.03 x 10^2

• 8.23 x 10^2

Tags

CCSS.8.EE.A.4

Subtract (5.6 x 10^3) from (8.9 x 10^4) in scientific notation.

• 8.844 x 10^5

• 8.944 x 10^4

• 8.844 x 10^3

• 8.844 x 10^4

Tags

CCSS.8.EE.A.4

Find the result of (3.4 x 10^6) + (1.2 x 10^5) in scientific notation.

• 3.52 x 10^5

• 4.6 x 10^6

• 2.6 x 10^6

• 3.52 x 10^6

Tags

CCSS.8.EE.A.4

What is the difference between (9.7 x 10^3) and (2.5 x 10^2) in scientific notation?

• 9.45 x 10^2

• 9.45 x 10^3

• 7.2 x 10^3

• 1.5 x 10^2

Tags

CCSS.8.EE.A.4

Calculate the sum of (6.2 x 10^4) + (3.5 x 10^3) in scientific notation.

• 6.55 x 10^4

• 6.55 x 10^2

• 6.55 x 10^5

• 6.55 x 10^3

Tags

CCSS.8.EE.A.4

Subtract (4.8 x 10^5) from (9.2 x 10^6) in scientific notation.

• 4.8 x 10^5

• 9.2 x 10^6

• 4.4 x 10^6

• 8.72 x 10^6

Tags

CCSS.8.EE.A.4

Find the result of (2.1 x 10^7) + (3.9 x 10^4) in scientific notation.

• 2.139 x 10^6

• 2.139 x 10^8

• 2.139 x 10^7

• 2.139 x 10^5

Tags

CCSS.8.EE.A.4

What is the difference between (7.6 x 10^3) and (1.9 x 10^2) in scientific notation?

• 3.8 x 10^2

• 5.2 x 10^3

• 7.41 x 10^2

• 7.41 x 10^3

Tags

CCSS.8.EE.A.4