Which Word Fits? is a free printable Kindergarten English worksheet on telling apart words that differ by one letter, aligned to Common Core standard RF.K.3. It prints 8 questions with an answer key on its own sheet of paper, in 25 versions, 24 of them with different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 22 of 25 · the same problems every time you open this link.

One paper per student

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

Set 1 has all 25 in a single PDF. 24 of these 25 sets ask different questions — this skill does not have 25 questions to give. The rest reorder them, so no two students have the same paper in front of them.

Which Word Fits?

RF.K.3

NameDate

Choose the word from the box that makes sense.

1.I can ___ fast.

Choose: run · rug · ram

2.My dog likes to ___ in the mud.

Choose: dig · dug · dog

3.I sleep in my ___.

Choose: bed · bad · bud

4.The ___ swims in the pond.

Choose: fish · dish · wish

5.I hit the ball with a ___.

Choose: bat · bit · but

6.I drink from a ___.

Choose: cup · cap · cop

7.A ___ says oink.

Choose: pig · peg · pug

8.I put on my red ___.

Choose: hat · hit · hot

LessonPrint · RF.K.3 · Set 22 · free to copy for classroom use

Answer key — Which Word Fits?

Set 22. Prints on its own sheet.

1.run
2.dig
3.bed
4.fish
5.bat
6.cup
7.pig
8.hat

Last reviewed 2026-09-05. Aligned to RF.K.3 of the Common Core State Standards for English Language Arts.