Question

The typical mass of a mouse is 3 x 10-2 kg. The typical mass of a bee is 1.1 x 10-4 kg.
How much greater is the mass of the mouse than the mass of the bee?
Write your answer using scientific notation.
X 10-2 kg
(3 x 10-2) (1.1 x 10) = (3 × 10-2) (0.011 x 10-2)

Answer 1

Compute the difference:
(3 × 10^-2) − (1.1 × 10^-4)
Factor 10^-2: (3 − 0.011) × 10^-2 = 2.989 × 10^-2 kg

So the mouse is 2.989 × 10^-2 kg heavier (≈ 2.99 × 10^-2 kg).