can u please give me a sentence for this phrase as a noun clause?

what the score was

Again -- try using it to start your sentence -- make it the subject.

could this be right??

what the score was was a B+

Yes, that's correct.

Try some of the other variations I gave you in a previous post (go down the list).

Sure! Here's a sentence with "what the score was" as a noun clause:

"The coach was curious about what the score was."