This worksheet focuses on using prefixes to complete sentences. Prefixes are added to the beginning of words to change their meaning. Below, I will solve each problem by choosing the appropriate prefix and explaining the reasoning.
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1. Mom had to ______heat the oven to 350° to bake the cake.
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Prefix: pre-
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Completed Word: preheat
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Explanation: "Pre-" means "before." Preheating the oven means heating it before baking.
Answer: pre-
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2. To help keep the Earth clean, we cycle all of or plastic.
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Prefix: re-
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Completed Word: recycle
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Explanation: "Re-" means "again" or "back." Recycling plastic means processing it again for reuse.
Answer: re-
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3. I looked over my writing and found a ______ spelled word.
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Prefix: mis-
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Completed Word: misspelled
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Explanation: "Mis-" means "wrongly" or "incorrectly." A misspelled word is one that is spelled incorrectly.
Answer: mis-
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4. Before you take off your shoes, you need to ______ tie them.
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Prefix: un-
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Completed Word: untie
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Explanation: "Un-" means "reverse" or "undo." Untying your shoes means loosening the knot.
Answer: un-
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5. You may be correct, but I ______ agree with you.
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Prefix: dis-
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Completed Word: disagree
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Explanation: "Dis-" means "not" or "opposite." Disagreeing means not agreeing with someone.
Answer: dis-
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6. We checked the ______ cast before we planned the event.
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Prefix: pre-
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Completed Word: preview
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Explanation: "Pre-" means "before." Previewing the cast means checking it beforehand.
Answer: pre-
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7. The big, gray ______ marine plunged down into the water.
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Prefix: deep-
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Completed Word: deep-sea
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Explanation: "Deep-" refers to something far below the surface. Deep-sea marine life lives in the depths of the ocean.
Answer: deep-
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8. If you want to be ready for something, you need to ______ pare.
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Prefix: fore-
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Completed Word: forearm
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Explanation: "Fore-" means "before" or "in front." Forearming means preparing or getting ready beforehand.
Answer: fore-
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9. Make sure you ______ turn the library book on time!
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Prefix: re-
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Completed Word: return
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Explanation: "Re-" means "back." Returning the library book means giving it back.
Answer: re-
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10. I try to be careful but sometimes I make a ______ take.
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Prefix: mis-
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Completed Word: mistake
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Explanation: "Mis-" means "wrongly." A mistake is an error made due to carelessness or misunderstanding.
Answer: mis-
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Final Answers:
1. pre-
2. re-
3. mis-
4. un-
5. dis-
6. pre-
7. deep-
8. fore-
9. re-
10. mis-
Boxed Final Answer:
\boxed{pre-, re-, mis-, un-, dis-, pre-, deep-, fore-, re-, mis-}
Parent Tip: Review the logic above to help your child master the concept of affixes worksheet 3rd grade.
