Operations with Scientific Notation (Updated)

Write the answer in scientific notation. Round to correct number of sig figs.

4.1 x 10⁵ + 5.5 x 10⁶ =

• 5.91 x 10⁶

• 9.6 x 10⁵

• 5.9 x 10⁶

• 4.65 x 10⁵

Subtract within the scientific notation. Round to the correct number of Sig Figs.

(2 x 10³) - (1.9 x 10²)

• 1.81 x 10⁵

• 1.81 x 10³

• 2 x 10³

• 1.81 x 10⁴

Round answer to correct number of sig figs.

(5.2 x 10⁷) + (3.01 x 10⁴)

• 5.2 x 10⁷

• .520301 x 10⁷

• 5.20301 x 10⁷

• 5.20301 x 10⁸

Subtract withing scientific notation

(7.32 x 10⁶) - (4.01 x 10⁸)

• -3.937 x 10⁸

• -3.94 x 10⁸

• 3.937 x 10⁷

• 3.937 x ⁻²

(2 x 10⁴) - (1.9 x 10²)

Round answer to correct number of sig figs.

• 1.81 x 10⁵

• 1.81 x 10³

• 2 x 10⁴

• 1.81 x 10⁴

(6.2 x 10⁷) + (3.01 x 10⁴)

Round answer to correct number of sig figs.

• 6.20301 x 10¹¹

• 6.2 x 10⁷

• 6.20301 x 10⁷

• 6.20301 x 10⁸

(6.2 x 10²) + (9.7 x 10⁰)

Round answer to correct number of sig figs.

• .6297 x 10²

• 6.297 x 10⁰

• 6.3 x 10²

• 6.297 x 10²

(3x 10³) - (1.9 x 10²)

Round answer to correct number of sig figs.

• 2.81 x 10⁵

• 2.81 x 10³

• 3 x 10³

• 2.81 x 10⁴

Which is the largest?
4.8 x 10^-6 
1.3 x 10²⁰
3.1 x 10^-4
9.2 x 10^-5 
9.5 x 10³²
5.9 x 10^-5
2.9 x 10²¹
8.4 x 10¹⁹

• 9.5 x 10³²
• 3.1 x 10^-4
• 8.4 x 10¹⁹
• 4.8 x 10^-6 

Tags

CCSS.8.EE.A.3

(7.32 x 10⁶) - (4.01 x 10⁸)

Round answer to correct number of sig figs.

• -3.937 x 10⁸

• -3.94 x 10⁸

• 3.937 x 10⁷

• 3.937 x ⁻²