Multiply (3.2 x 10⁴) by (2.5 x 10³) and express the result in scientific notation.

Divide (6.4 x 10⁵) by (2.0 x 10²) and express the result in scientific notation.

Which of the following calculations correctly handles significant figures: (5.67 x 10⁴) / (2.3 x 10²)?

Calculate (7.89 x 10²) x (2.0 x 10¹) and express the result with the correct number of significant figures.

Which calculation correctly handles significant figures: (9.0 x 10³) x (1.5 x 10²)?