What does 0.04 estimate to?

Answer 1

For multiplication or division it is 0.04 while for addition or subtraction, the answer depends on the order of magnitude of the other terms.

For example, for 1234 + 0.04 I would use 0.04 = 0

but for 0.00001234 + 0.04 i would use 0.04 = 0.04

Answer 2

To the nearest hundredth, 0.04