Applying operations on numbers expressed using scientific notation to solve mathematical and real-world problems

Simplify. Write each answer in scientific notation.

2.5 × 10¹ + 6.14 × 10⁴

• 6.1425 × 10⁴

• 6.1425 × 10⁷

• 6.1425 × 10¹⁰

• 6.1425 × 10¹³

(2.3 x 10²)+(4.1 x 10²)=

Give the difference of (7.2 x 10⁷) - (4.5 x 10⁷)

• 2.7 x 10⁷

• 2.7 x 10⁰

• 1.17 x 10⁷

• 3.3 x 10⁷

Simplify. Write each answer in scientific notation.

8.2 × 10³ + 3.7 × 10¯²

• 8.20037 × 10³

• 8.20037 × 10⁶

• 8.20037 × 10⁹

• 8.20037 × 10¹²

Add using scientific notation.
(5.2 x 10⁷) + (3.01 x 10⁴)

• 8.01 x 10¹¹
• 8.01 x 10⁷
• 5.20301 x 10⁷
• 5.20301 x 10⁸

Solve:

(7 x 10¹⁵) + (5 x 10¹⁵)

• 12 x 10³⁰

• 1.2 x 10¹⁵

• 12 x 10¹⁵

• 1.2 x 10¹⁶

Write the answer in scientific notation.

5 · 10⁸ - 3.4 · 10⁸ =

• 2.4 · 10⁸

• 2.4 · 10⁰

• 1.6 · 10⁰

• 1.6 · 10⁸