Multiplying and Dividing Scientific Notation Green

What is the value of x in this equation?
(2.4×10³) × (3×10^x) = 7.2×10⁹

• 5
• 6
• 7
• 8

(9.6×10³) × (6.7×10²)

• 64.32×10⁵
• 6.432×10⁶
• 64.32×10⁶
• 64.32×10⁵

Solve:
(2.1×10​²​​) × (3.0×10​⁴)

• 5.1 x 10²
• 6.3 x 10⁶
• 5.1 x 10⁶
• 6.3 x 10⁸

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.3

(6×10³) ÷ (3×10²)

• 18×10⁶
• 2×10⁵
• 2×10⁶
• 2×10¹

Tags

CCSS.8.EE.A.4

What is the value of n in the equation?
1.8×10ⁿ = (6×10⁸)×(3×10⁶)

• 12
• 13
• 14
• 15

Tags

CCSS.8.EE.A.4

(3.8×10⁷)×162

• 6.156×10⁹
• 6.156×10⁸
• 615×10⁷
• 615×10⁸

Tags

CCSS.8.EE.A.4

What is the simplified form of
(3.25 x 10³)(7.8 x 10⁶)

• 2.535 x 10¹⁰
• 2.535 x 10¹⁸
• 2.535 x 10¹⁹
• 2.535 x 10⁹

Tags

CCSS.8.EE.A.4

Multiply:
(9.4 x 10⁶)(3.2 x 10⁵)

• 30.08 x 10¹¹
• 3.8 x 10¹
• 3.008 x 10¹²
• 2.9375 x 10¹

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.3

CCSS.6.NS.B.3

(3.4x10^-4) x (3.2x10^-3)

• 10.88x10⁷
• 1.088x10^-6
• 1.088x10^-8
• 10.88x10^-7

Tags

CCSS.8.EE.A.4

Which of these equations is correct? 

• (6.6 x 10⁷)(3.4 x 10⁶) = 10 x 10¹³
• (5.6 x 10³)÷(3.4 x 10^-3) = 1.647058824 x 10^-6
• (3.4 x 10³)(2 x 10^-5) = 6.8 x 10⁸