Lesson 1.6: Compute with Scientific Notations (Revision)

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

CCSS.6.NS.B.3

Divide.

• 3.9 x 10⁶
• 4 x 10²⁰
• 4 x 10⁶
• 3.9 x 10²⁰

Tags

CCSS.8.EE.A.4

Find the difference
(3.8 x 10⁴) - (2 x 10³)

• 1.8 x 10⁴
• 1.8 x 10¹
• 3.6 x 10¹
• 3.6 x 10⁴

Tags

CCSS.8.EE.A.4

Find the sum
(4x10²)+ (5.1x10²)

• 9.1 x 10⁴
• 9.1 x 10²
• 5.5 x 10
• 20.4 x 10⁴

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.3

CCSS.6.NS.B.3

Multiply:
(3.4 x 10⁵)(1.2 x 10^-3)

• 4.08 x 10³
• 4.8 x 10²
• 4.08 x 10²
• 4.08 x 10¹

Tags

CCSS.6.EE.A.1

CCSS.6.NS.B.3

Write the answer in scientific notation.
4.1 x 10⁵ +   5.5 x 10⁶  =

• 5.91 x 10⁶
• 9.6 x 10⁵
• 9.6 x 10¹¹
• 4.65 x 10⁵

Tags

CCSS.8.EE.A.4

(7.32 x 10⁶) - (4.01 x 10⁸)

• -3.937 x 10⁸

• -3.94 x 10⁸

• 3.937 x 10⁷

• 3.937 x ⁻²

Tags

CCSS.8.EE.A.4

(2 x 10⁴) - (1.9 x 10²)

• 1.81 x 10⁵

• 1.81 x 10³

• 2 x 10⁴

• 1.81 x 10⁴

Tags

CCSS.8.EE.A.4

(5.2 x 10⁷) + (3.01 x 10⁴)

• 5.20301 x 10¹¹

• 5.2 x 10⁷

• 5.20301 x 10⁷

• 5.20301 x 10⁸

Tags

CCSS.8.EE.A.4

Cell A=4.2 x 10^-4

Cell B=2.1 x 10^-5

Cell C=8.4 x 10^-4

Cell C is ___ larger than cell A.

• 2 times

• 20 times

• 0.2 times

• 4 times