Prefixes Worksheets - Prefixes Exercises • 7ESL

Contents

On this page, you’ll find fun and effective prefixes worksheets to boost word-building skills, expand vocabulary, and strengthen reading comprehension—perfect for classroom or independent practice!

Download Prefixes Worksheets

Prefixes are powerful word parts placed at the beginning of root words to change their meaning. Learning common prefixes like un-, re-, pre-, dis-, and mis- helps students unlock the meaning of new vocabulary.

See more: +35 Common Prefixes

Choosing the correct prefix and rewriting the complete word.

2. Look at the first example and write other words with the prefixes given.

3. Look at each prefix provided. For each one, write three different words that include the prefix.

4. Write the correct prefix in the blank to complete the sentence.

6. From the prefixes given, write your complete words.

Prefixes Exercises

Exercise 1: Choose the Correct Prefix

Direction:

Choose the best prefix to complete each word or sentence. Circle A, B, or C for the correct answer.

Questions:

He had to ___write his essay because he lost the original copy.
A) un B) re C) mis
She was ___happy when her toy broke.
A) un B) re C) pre
Please ___heat the soup before serving it.
A) mis B) re C) dis
We watched a ___view of the movie before it was released.
A) pre B) un C) re
He was ___able to finish his homework on time.
A) dis B) un C) pre
I don’t want to ___place my phone again!
A) mis B) re C) un
This book is ___fiction, so it’s based on real events.
A) dis B) non C) pre
I ___agree with your idea. I think it won’t work.
A) re B) mis C) dis

Answer Key:

No.	Correct Answer	Completed Word
1	B) re	rewrite
2	A) un	unhappy
3	B) re	reheat
4	A) pre	preview
5	B) un	unable
6	A) mis	misplace
7	B) non	nonfiction
8	C) dis	disagree

Exercise 2: Fill in the Blank with Prefix Words

Direction:

Read each sentence carefully and fill in the blank using a correct word formed by adding a prefix to the base word in parentheses.

Sentences:

The rabbit seemed to ___ in the tall grass. (appear)
Please ___ the headphones when you’re finished using them. (connect)
Their workspace was ___, with papers scattered everywhere. (organize)
It was ___ to interrupt the speaker during the presentation. (polite)
We should ___ old bottles and cans to protect the environment. (cycle)
The crew will ___ the damaged bridge next month. (build)
That explanation is completely ___—it doesn’t follow any logic. (logical)
The doctor gave us some ___ to follow before the surgery. (caution)

Answer Key:

No.	Completed Sentence
1	The rabbit seemed to disappear in the tall grass.
2	Please disconnect the headphones when you’re finished using them.
3	Their workspace was disorganized, with papers scattered everywhere.
4	It was impolite to interrupt the speaker during the presentation.
5	We should recycle old bottles and cans to protect the environment.
6	The crew will rebuild the damaged bridge next month.
7	That explanation is completely illogical—it doesn’t follow any logic.
8	The doctor gave us some precautions to follow before the surgery.

Exercise 3: Correct the Mistake

Direction:

Each sentence contains a prefix-related mistake. Read carefully and rewrite the sentence correctly by fixing the incorrect prefix or word.

Sentences with Mistakes:

She was very unpolite to the guest.
He had to diswash the dishes because they were still dirty.
That idea is illlogical and confusing.
Please disconnects your laptop when you’re done.
His behavior was misrespectful to the teacher.
We saw the magician disappearred behind the curtain.
I had to preheatting the oven before baking.
The boy was nonstoping in his talking.

Answer Key:

No.	Corrected Sentence
1	She was very impolite to the guest.
2	He had to rewash the dishes because they were still dirty.
3	That idea is illogical and confusing.
4	Please disconnect your laptop when you’re done.
5	His behavior was disrespectful to the teacher.
6	We saw the magician disappear behind the curtain.
7	I had to preheat the oven before baking.
8	The boy was nonstop in his talking.

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Alma Webster

Alma Webster is an English teacher from England who has been teaching ESL since 2020. Passionate about language and culture, she loves traveling the world and currently lives in Thailand.