Estimate (noun) in a sentence

The phrase "the numbers below are estimates" is clear. Since numbers and figures are synonymous, the "figure(s)" in the second phrase doesn't add anything.

I agree with Gorlux, "the numbers below are estimates" is all that is required to communicate the intended meaning. However, even though the second phrase is incorrect as written, it could read: "the numbers below are an estimate" or "the numbers below are estimated figures" and substitute the first phrase.