Multiplying and Dividing Scientific Notation in Context

As part of a community service project, a class planted 7x10⁵ trees in a year. If there are 3.5x10³ students in the school, how many trees did each student plant?

• Multiply

• Divide

Tags

CCSS.8.EE.A.4

The Colorado Department of Education spent about 4.408 x 10⁹ in fiscal year 2004-2005 on public schools. There were about 7.6 x 10⁵ students enrolled in public school. What was the average spending per student?

• 5.8 x 10⁵

• 5.8 x 10³

• 1.72 x 10^-4

• 1.72 10⁴

Tags

CCSS.8.EE.A.4

As part of a community service project, a class planted 7x10⁵  trees in a year.  If there are 3.5x10³ students in the school, how many trees did each student plant?

• 2 x 10⁸

• 2 x 10²

• 3.5 x 10⁸

• 3.5 x 10²

Tags

CCSS.8.EE.A.4

(9.6×10³) × (6.7×10²)

• 64.32×10⁵

• 6.432×10⁶

• 64.32×10⁶

Tags

CCSS.8.EE.A.4

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.8.EE.A.4

Solve:
(6 x 10⁶) / (2 x 10³)

• 12 x 10³

• 3 x 10⁹

• 1.2 x 10⁴

• 3 x 10³

Tags

CCSS.8.EE.A.4

Solve: (2 x 10⁹) (4 x 10^-4)

• 8 x 10¹³

• 8 x 10³⁶

• 8 x 10⁵

• 8 x 10^-36

Tags

CCSS.8.EE.A.4

Multiply:

(9.4 x 10⁶)(3.2 x 10⁵)

• 30.08 x 10¹¹

• 3.008 x 10¹⁰

• 3.008 x 10¹²

• 2.9375 x 10¹

Tags

CCSS.8.EE.A.4

When multiplying numbers in scientific notation, what do you do with the exponents?

• Multiply them

• Add them

• Keep them the same

• Make them equal

Tags

CCSS.8.EE.A.4

When dividing numbers in scientific notation, what do you do to the exponents?
For example:
(4×10⁵) ∕ (3×10²)

• Add them

• Subtract them

• Keep them the same

• Divide them

Tags

CCSS.8.EE.A.4