Word Builders Unite: Prefixes and Suffixes in Action for Class 3

This Grade 3 English grammar worksheet helps students build new words by using prefixes and suffixes correctly. Learners discover how adding word parts at the beginning or end of a root word can change its meaning, form, or function.
The worksheet covers commonly used prefixes such as un-, in-, im-, ir-, re-, over-, and under-, along with useful suffixes like -ful, -less, -er, and -ness. Through clear, guided exercises, students learn how prefixes create opposites or repeat actions, while suffixes help form nouns and adjectives.
Created especially for Class 3 learners, the activities are structured from simple to slightly challenging, allowing children to gain confidence step by step. The exercises encourage logical thinking, spelling accuracy, and deeper understanding of word formation.
By completing this worksheet, students strengthen vocabulary, improve grammar awareness, and develop skills that support stronger reading and writing.

Why Prefixes and Suffixes Matter in Grammar?
Prefixes and suffixes help children understand how words are formed and how meanings change. For Grade 3 learners, this topic is important because:
1. Prefixes help show opposites, repetition, or degree.
2. Suffixes change words into nouns or adjectives.
3. Understanding word parts improves spelling and vocabulary.
4. These skills support clearer writing and better comprehension.

What’s Inside This Worksheet?

This worksheet includes four engaging word-building activities:

✏️ Exercise 1 – Prefixes for Opposites  
Students add prefixes like un-, in-, im-, ir-, and ill- to form opposite meanings.

🧠 Exercise 2 – Prefixes That Change Meaning  
Learners add prefixes such as re-, over-, and under- to create new words based on clues.

📘 Exercise 3 – Suffixes to Change Word Form  
Students add suitable suffixes to turn words into nouns or adjectives as directed.

📝 Exercise 4 – Common Suffix Practice  
Learners use suffixes like -ful, -less, -er, and -ness to build meaningful new words.

✅ Answer Key (For Parents & Educators)

Exercise 1 – Add a Prefix to Form the Opposite  
1. unhappy  
2. impossible  
3. unfair  
4. impatient  
5. irregular  
6. imperfect  
7. incomplete  
8. unable  
9. unkind  
10. impolite  

Exercise 2 – Add a Prefix to Make a New Word  
1. overheat  
2. recook  
3. rewrite  
4. unpack  
5. redo  
6. unlock  
7. replay  
8. untie  
9. disappear  
10. recover  

Exercise 3 – Add a Suitable Suffix  
1. careful  
2. helper  
3. joyful  
4. teacher  
5. hopeful  
6. childhood  
7. useful  
8. painful  
9. player  
10. fearful  

Exercise 4 – Add a Suitable Suffix  
1. kindful  
2. farmer  
3. beautiful  
4. painter  
5. thankful  
6. reader  
7. powerful  
8. musical  
9. teacher  
10. wonderful  
Help your child become a confident word builder with guided prefix and suffix practice.
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