It is amazing how one generation of humans growing up in different environments can not know what used to be in place regarding the use of numbers in sentences. The rule used to be that if the number was less than 10 you would spell it out in a sentence/paragraph. So for the examples above, the first four sentences would all get the spelling version of the number. The last sentence, however, you could be flexible with if it is written in a recipe and everything else has the number. That was how I was taught, but these days ... heck, we can misspell things all day long in an email or text, and it is acceptable. Go figure!

The rule used to be that if the number was less than 10 you would spell it out in a sentence/paragraph. So for the examples above, the first four sentences would all get the spelling version of the number. The last sentence, however, you could be flexible with if it is written in a recipe and everything else has the number. That was how I was taught, but these days ... heck, we can misspell things all day long in an email or text, and it is acceptable.