Add and Subtract Scientific Notation

Simplify. Write each answer in scientific notation: $3.1 \times 10^3 + 4.3 \times 10^3$

• 7.4 x 10^3

• 3.1 x 10^3

• 4.3 x 10^3

• 1.2 x 10^4

Tags

CCSS.8.EE.A.4

Simplify. Write each answer in scientific notation: $3 \times 10^1 + 6.4 \times 10^2$

• 6.7 x 10^2

• 6.43 x 10^2

• 3.64 x 10^2

• 9.4 x 10^2

Tags

CCSS.8.EE.A.4

Simplify. Write each answer in scientific notation: $2.4 \times 10^4 + 5.57 \times 10^3$

• 2.957 x 10^4

• 3.957 x 10^4

• 2.957 x 10^3

• 3.957 x 10^3

Tags

CCSS.8.EE.A.4

Simplify. Write each answer in scientific notation: $5 \times 10^{-2} + 1.6 \times 10^{-3}$

• 5.16 x 10^{-2}

• 6.6 x 10^{-2}

• 5.16 x 10^{-3}

• 5.0 x 10^{-2}

Tags

CCSS.8.EE.A.4

Simplify. Write each answer in scientific notation: $2.5 \times 10^1 + 6.14 \times 10^4$

• 6.14025 x 10^4

• 6.165 x 10^4

• 6.14 x 10^5

• 2.5 x 10^1

Tags

CCSS.8.EE.A.4

Simplify. Write each answer in scientific notation: $7 \times 10^{-1} + 6.4 \times 10^{-5}$

• 7.000064 x 10^{-1}

• 7.000064 x 10^{-2}

• 6.4007 x 10^{-1}

• 7.064 x 10^{-1}

Tags

CCSS.8.EE.A.4

Simplify. Write each answer in scientific notation: $5 \times 10^{-3} + 3.3 \times 10^{-6}$

• 5.0033 x 10^{-3}

• 5.33 x 10^{-3}

• 5.003 x 10^{-3}

• 5.0033 x 10^{-4}

Tags

CCSS.8.EE.A.4

Simplify. Write each answer in scientific notation: $8 \times 10^{-1} + 6.9 \times 10^3$

• 6.9008 x 10^3

• 6.908 x 10^3

• 6.9 x 10^3

• 6.8008 x 10^3

Tags

CCSS.8.EE.A.4

Simplify. Write each answer in scientific notation: $1.39 \times 10^5 - 4 \times 10^2$

• 1.386 x 10^5

• 1.35 x 10^5

• 1.39 x 10^4

• 1.385 x 10^5

Tags

CCSS.8.EE.A.4

Simplify. Write each answer in scientific notation: $2.74 \times 10^{-1} - 6.53 \times 10^{-4}$

• 2.73347 x 10^{-1}

• 2.73347 x 10^{-2}

• 2.73347 x 10^{-3}

• 2.73347 x 10^{-4}

Tags

CCSS.8.EE.A.4