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 1 of 25 · the same problems every time you open this link.
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 hit the ball with a ___.
Choose: bat · bit · but
2.The bird sat in its ___.
Choose: nest · vest · best
3.I put on my red ___.
Choose: hat · hit · hot
4.A ___ says oink.
Choose: pig · peg · pug
5.I drink from a ___.
Choose: cup · cap · cop
6.The ___ ran up the tree.
Choose: cat · cot · cut
7.I can ___ fast.
Choose: run · rug · ram
8.My dog likes to ___ in the mud.
Choose: dig · dug · dog
LessonPrint · RF.K.3 · Set 1 · free to copy for classroom use
Answer key — Which Word Fits?
Set 1. Prints on its own sheet.
1.bat
2.nest
3.hat
4.pig
5.cup
6.cat
7.run
8.dig
Questions about Which Word Fits?
What does the Which Word Fits? worksheet cover?
It practices telling apart words that differ by one letter — 8 questions for Kindergarten, all on Common Core RF.K.3: Match letters to their sounds and blend them to read simple words. The instruction to students is “Choose the word from the box that makes sense”, and the answer key follows on the next sheet.
Which Common Core standard does Which Word Fits? practice?
CCSS.ELA-LITERACY.RF.K.3 — RF.K.3, under Reading: Foundational Skills for Kindergarten. The published standard reads: “Know and apply grade-level phonics and word analysis skills in decoding words.” The worksheet assesses that standard rather than a paraphrase of it.
What age or grade is this worksheet for?
Which Word Fits? is written for Kindergarten, typically ages 5-6. It is one of the sheets on RF.K.3, so it suits any student working at that standard — including older students revisiting it and younger ones working ahead.
Does Which Word Fits? come with an answer key?
Yes. All 8 answers are generated from the same problems as the questions, so the key cannot drift out of step with the sheet. It starts on a fresh sheet of paper, after the questions, so it is not handed out with the class by accident.
How many different versions of Which Word Fits? can I print?
25 versions, of which 24 ask genuinely different questions — this skill does not have 25 distinct questions to give, so the rest reorder them and no two students still share a paper. Set 1 downloads all 25 as one PDF.
Is Which Word Fits? free to print and photocopy?
Yes. Which Word Fits?, its answer key and its 25 versions are free to print and photocopy for your own class, with no account, no email capture and no subscription at the download step. Please do not resell them or republish them as your own.
More practice for RF.K.3
Match letters to their sounds and blend them to read simple words.