When I use numbers, when should I spell the word as opposed to just using the number?
52504
When to spell out numbers
80771
spelling numbers
115778
In writing dates, when should "last" or "on" be used?
14397
Plurals of acronyms, letters, numbers — use an apostrophe or not?
49177
Can I use 'in' instead of 'at'? -- "I have more books in my house."
113785
How to use "tens of" and "hundreds of"?
20338
What is the proper way to write the plural of a single letter? Or a word used as a word ('mention' usage)? (another apostrophe question)
127309
When to use "rather than" versus "instead of"?
14556
What is the proper way to write the plural of a single letter? (another apostrophe question)
17739
Which "mean" to use and when?
18268
Is it proper to use a colon followed immediately by a hyphen?
136229
-ed and -ing adjective, how to use it properly?
72383
"by as much as" + number
156781
Should I write $i$ before or after the imaginary part?
2182
vs. . Which to use?
18579
"A quarter past five" or simply "Quarter past five"?
157353
Usage of "When doing something"