He did that equation very quickly.
The adverb form of the word "wise" is wisely.An example sentence is: "Fluffy was advised to use the last three of his nine lives very wisely".
You would have to use one of the adverb forms "thoughtfully" or "thoughtlessly."
The word by is typically a preposition. As an adverb it means next to or near.The people gathered to watch the army trucks roll by.Most people never realize when they have let an opportunity pass by.
Apiece (one word) is an adverb meaning each, per each, or for each. Example sentence:You will get two cookies apiece when you finish your lunch.
It is about 12 o'clock. There are about 20 students in the class.
She jumped high up into the air. The word "high" is an adverb in the sentence above.
Enhance
It is the adverb for doleful, but I do not think you should use it in a sentence
The word below can be an adjective, adverb or preposition. It is an adverb in the sentence: "To see another example, look below."
The bird soared high in the sky.
You can use an adverb to modify a verb, an adjective, or another adverb.A nonspecific adverb, such as really or totally, can become entirely overused in everyday speech.
It's an adverb, a word that modifies a verb, an adjective, or another adverb. It's also overused.
The word "wryly" is an adverb. An example of a sentence using the word would be: With disgust in her voice, she wryly asked him if he was finished.
The word VERY means greatly or extremely. VERY is mainly used to further explain an adjective or adverb. It virtually always directly precedes the word it modifies.In this sentence: "I ran my lap very fast," VERY is an adverb that describes the adverb FAST.In this sentence: "John is very sick" the adverb VERY describes the adjective SICK.
The word "diffidently" is an adverb. An example of a sentence using the word would be: He diffidently explained why he had been late.
I was stymied by the math equation.
perforce (adverb)-necessarilyI was tired, so I perforce rested.