Words similar to back-of-envelope

Example sentences for: back-of-envelope

How can you use “back-of-envelope” in a sentence? Here are some example sentences to help you improve your vocabulary:

But a very crude back-of-envelope calculation suggests that the black dependency rate in 1967 was somewhere around 5 percent, and that it then more than doubled, to around 12 percent, by 1973, when the welfare caseload stabilized.