Question

The average height of a giraffe is about 2 x 10¹ feet. The average height of an ant is about 4 x 10-³ feet.

Based on this information, about how many times taller is a giraffe than an ant?

Answer 1

1. Convert to decimal notationThe exponent is -3, making it 10 to the power of negative 3. When an exponent is negative, the solution is a number less than the origin or base number. To find our answer, we move the decimal to the left 3 times: 4.0

2. Final result

0.004