The phrase "an additional number of" is correct and usable in written English.
You can use it to describe a larger quantity or amount. For example, "We are expecting an additional number of people to show up at the meeting this week."
Wood said that the cost cutting would involve 55 redundancies and "the removal of an additional number of vacant posts".
Then they say the Department of Transportation has to come up with an additional number of slots and needs to provide additional remedies".
Ms. Hendriks said, "The reason the sale was higher, is because the formula for his sales is set at a predetermined strike price, with an additional number of shares set to sell as the stock price goes higher".
Inside, tickets are handled in bales as they come from all over the globe Since 1930, 97,092,442 pounds has passed thru this office 39,580,067 pounds on its way to Irish hospitals & the Red Cross and an additional number of pounds to the three founders of the scheme: Mr. Joseph McGrath, Mr. Spencer Freeman and the late Mr. Richard Dugan.
This is explained in terms of an additional number of gauche conformations due to chain folding at lamellar surfaces.
In our real life experience, we have an additional number of patients that have received up to 13 repeated cycles.
"The expectation is that you would not get a large additional number of forces as a result of an additional U.N. resolution," Mr. Rumsfeld said in response to a question after his speech.
Only a limited additional number of publications were found after checking the references of the included studies.
Moreover, there is a requirement of additional number of direction over current relays.
The basic dynamical aspects of parallel axis positioning systems, with a minimum and additional number of parallel actuators, are examined for beam and plate systems.
Otherwise, an additional fixed number of patients are enrolled to accumulate additional information on efficacy.
