Prefix Power Play: un-, re-, dis-, mis- for Class 5 
 

This Class 5 worksheet strengthens learners' vocabulary and spelling by teaching how prefixes like un-, re-, dis-, and mis- can change the meaning of root words. Through sorting, correcting, and sentence-building tasks, students learn how small additions at the beginning of a word can transform its usage and context. 
 

Why Prefixes Matter in Grammar? 
 

Understanding prefixes helps students: 
1. Decode the meaning of new and unfamiliar words. 
2. Avoid spelling and word choice errors in writing. 
3. Build vocabulary using common affix patterns. 
4. Write with more accuracy and word variety. 
 

What’s Inside This Worksheet? 
 

This worksheet includes five scaffolded exercises to build prefix confidence: 

🧩 Exercise 1 – Add the Right Prefix 
Students choose the correct prefix (un-, re-, dis-, mis-) and rewrite the word (e.g., *unhappy*, *rewrite*). 

🌀 Exercise 2 – Circle the Correct Word 
Given two options per sentence, students circle the correctly prefixed word (e.g., *misplaced* vs *replaced*). 

✍️ Exercise 3 – Build and Use 
Learners form new words using base words (e.g., *beauty*, *fear*, *help*) and apply them in their own sentences. 

🔧 Exercise 4 – Fill in the Blank 
Students complete eight sentences by selecting the correct prefixed form of a root word (e.g., *repack*, *dissatisfied*). 

📝 Exercise 5 – Rewrite a Paragraph 
Students find plain root words in a paragraph and replace them with the correct prefixed words (e.g., *pack → repack*, *understand → misunderstand*). 
 

✅ Answer Key (For Parents & Educators) 
 

Exercise 1 – Prefixes Added 
unhappy, disagree, unfair, misunderstand, unwell, rewrite, decides → undecides, retake, overturn, replace 

Exercise 2 – Circle the Word 
1. rewrite 
2. unlocked 
3. disagreement 
4. misplaced 
5. repack 
6. unhappy 
7. revisit 
8. misbehaved 
9. disliked 
10. unwrapped 

Exercise 3 – Sample Sentences 
1. Beauty → *unbeauty* (Not standard; likely intended: *unbeautiful*) – Sentence will vary 
2. Fear → *unfearful* or *fearless* – “She was fearless during the storm.” 
3. Help → *helpless* – “He felt helpless when his toy broke.” 
4. Job → *misjob* (not standard; possibly *jobless*) 
5. Happy → *unhappy* – “He was unhappy after losing the game.” 
6. Kind → *unkind* – “It was unkind to tease her.” 

Exercise 4 – Fill in the Blank 
1. repack 
2. dissatisfied 
3. rewrite 
4. misbehaved 
5. unhappy 
6. disregard 
7. rearrange 
8. mispronounce 

Exercise 5 – Rewritten Paragraph 
Last weekend, I had to **repack** my bag again because I had forgotten my notebook. My room was tidy, but I accidentally **misplaced** my pencil case and couldn't find it. I felt **unhappy** about going to school, but I **misunderstood** the schedule and ended up being late. My teacher was **displeased** and told me to **rewrite** my homework. I promised to be more careful next time. 

Support your child’s vocabulary growth with real-world practice in prefixes and word transformation. 

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