Prefixes and suffixes

Question 1

Read the word “disagreement.” Which of the following statements correctly identifies the base word and tells how the prefix changes its meaning?

Accepted Answer

The base word is “agree,” and the prefix “dis‑” means not, so the word means not agreeing.

Answer

The base word is “agree,” and the prefix “dis‑” means again, so the word means agreeing again.

Answer

The base word is “agreement,” and the prefix “dis‑” means before, so the word means something that happens before an agreement.

Answer

The base word is “agree,” and the suffix “‑ment” changes a verb into an adjective, giving the meaning of being agreeable.

Question 2

Luna saw the word preheat on the oven timer. Which sentence correctly tells what the original word is and how the added part changes its meaning?

Accepted Answer

The base word is heat; the prefix pre‑ means to do the heating before.

Answer

The base word is pre; the suffix ‑heat means to make something hot.

Answer

The base word is heat; the added part pre changes the word to a noun.

Answer

The base word is heat; the prefix pre‑ means less heat.

Question 3

The root word “play” can be changed by adding the prefix “re‑” to make “replay” and by adding the suffix “‑ful” to make “playful”. Which sentence correctly explains how each addition changes the word’s meaning and its word class?

Accepted Answer

Adding “re‑” gives the meaning “to play again” and the word stays a verb; adding “‑ful” changes the word to an adjective meaning “full of play”.

Answer

Adding “re‑” turns the word into a noun meaning “again”, and adding “‑ful” keeps it a verb meaning “to fill with play”.

Answer

Adding “re‑” does not change the meaning, only the spelling, and adding “‑ful” makes the word an adverb meaning “in a playful way”.

Answer

Adding “re‑” makes the meaning “not play”, and adding “‑ful” changes the word into a noun meaning “the act of playing”.

Try three questions

Read the word “disagreement.” Which of the following statements correctly identifies the base word and tells how the prefix changes its meaning?

Luna saw the word preheat on the oven timer. Which sentence correctly tells what the original word is and how the added part changes its meaning?

The root word “play” can be changed by adding the prefix “re‑” to make “replay” and by adding the suffix “‑ful” to make “playful”. Which sentence correctly explains how each addition changes the word’s meaning and its word class?

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