Operations with Scientific Notation

Before numbers in scientific notation can be added or subtracted, the exponents must be equal. What is the result of (3.4 x 10^2) + (4.57 x 10^3)?

• 340

• 4570

• 4910

• 4900

Tags

CCSS.8.EE.A.4

What is the result of (2.00 x 10^3)(4.00 x 10^4)?

• 8000

• 80000

• 8

• 8 x 10^7

Tags

CCSS.8.EE.A.4

Fill in the blank for the following calculation: 11 x 10^4 + 7.8 x 10^5 = (1.1 + 7.8) x 10^5 = ?

• 7.91 x 10^5

• 8.9 x 10^5

• 9.1 x 10^5

• 8.8 x 10^5

Tags

CCSS.8.EE.A.4

Convert the following to standard form and fill in the blank: 4 x 10^3 - 2.5 x 10^2 = 4000 - 250 = 3,750 = 3.75 x 10^3.

• 3.75 x 10^3

• 3.75 x 10^2

• 37.5 x 10^3

• 0.375 x 10^4

Tags

CCSS.8.EE.A.4

Convert the following to standard form and fill in the blank: 7 x 10^4 - 5.5 x 10^3 = 70,000 - 550 = 69,450 = 69.45 x 10^4.

• 69.45 x 10^4

• 6.945 x 10^3

• 694.5 x 10^2

• 0.6945 x 10^5

Tags

CCSS.8.EE.A.4

Find the sum of: 9 x 10^5 + 4.5 x 10^6.

• 5.4 x 10^6

• 5.4 x 10^5

• 4.59 x 10^6

• 4.59 x 10^5

Tags

CCSS.8.EE.A.4

Perform the following operations and express the answers in scientific notation. (1.2 x 10^5) + (5.35 x 10^6)

• 5.47 x 10^6

• 6.55 x 10^6

• 5.47 x 10^5

• 6.55 x 10^5

Tags

CCSS.8.EE.A.4

Perform the following operations and express the answers in scientific notation. (6.91 x 10^-2) + (2.4 x 10^-3)

• 7.15 x 10^-2

• 6.91 x 10^-2

• 6.67 x 10^-2

• 7.31 x 10^-2

Tags

CCSS.8.EE.A.4

Perform the following operations and express the answers in scientific notation. (9.70 x 10^6) + (8.3 x 10^5)

• 1.053 x 10^7

• 1.053 x 10^6

• 1.053 x 10^5

• 1.053 x 10^8

Tags

CCSS.8.EE.A.4

Perform the following operations and express the answers in scientific notation. (3.67 x 10^2) - (1.6 x 10^1)

• 3.51 x 10^2

• 3.51 x 10^1

• 3.51 x 10^3

• 3.51 x 10^0

Tags

CCSS.8.EE.A.4