TEST Addition and Subtraction With Scientific Notation

Simplify and write the answer in scientific notation.

3.1 × 10³ + 4.3 × 10³

• 7.4 × 10³

• 7.4 × 10⁶

• 7.4 × 10⁹

• 7.4 × 10¹²

Tags

CCSS.8.EE.A.4

Simplify. Write each answer in scientific notation.

2.4 × 10⁴ + 5.57 × 10³

• 2.957 × 10⁴

• 2.957 × 10⁷

• 2.957 × 10¹⁰

• 2.957 × 10¹³

Tags

CCSS.8.EE.A.4

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

Tags

CCSS.8.EE.A.4

Simplify. Write each answer in scientific notation.

5 x 10^-³ +3.3 × 10^-6

• 5.0033 × 10⁻³

• 5.0033 × 10⁻⁶

• 5.0033 × 10⁻⁹

• 5.0033 × 10⁻¹²

Tags

CCSS.8.EE.A.4

Simplify. Write each answer in scientific notation.

1.39 × 10⁵ – 4 × 10²

• 1.386 × 10⁵

• 1.386 × 10⁸

• 1.386 × 10¹¹

• 1.386 × 10¹⁴

Tags

CCSS.8.EE.A.4

Simplify. Write each answer in scientific notation.

8.14 × 10⁵ – 7.8 × 10²

• 8.1322 × 10⁵

• 8.1322 × 10⁸

• 8.1322 × 10¹¹

• 8.1322 × 10¹⁴

Tags

CCSS.8.EE.A.4

Simplify. Write each answer in scientific notation.

5.1 × 10¯¹ +0.38 × 10⁴

• 3.80051 × 10³

• 3.80051 × 10⁶

• 3.80051 × 10⁹

• 3.80051 × 10¹²

Tags

CCSS.8.EE.A.4

Simplify. Write each answer in scientific notation.

3 × 10¹ + 6.4 × 10²

• 6.7 × 10²

• 6.7 × 10⁵

• 6.7 × 10⁸

• 6.7 × 10¹¹

Tags

CCSS.8.EE.A.4

Simplify. Write each answer in scientific notation.

5 × 10 ^-2 + 1.6 × 10⁻³

• 5.16 × 10⁻²

• 5.16 × 10⁻⁵

• 5.16 × 10⁻⁸

• 5.16 × 10⁻¹¹

Tags

CCSS.8.EE.A.4

Simplify. Write each answer in scientific notation.

7 × 10¯¹ + 6.4 × 10¯⁵

• 7.00064 × 10⁻¹

• 7.00064 × 10⁻⁴

• 7.00064 × 10⁻⁷

• 7.00064 × 10⁻¹⁰

Tags

CCSS.8.EE.A.4