Teen Numbers — Ten and Some More
K.NBT.A.1
Fill in the missing part.
LessonPrint · K.NBT.A.1 · Set 1 · free to copy for classroom use
Teen Numbers — Ten and Some More is a free printable Kindergarten maths worksheet on seeing a teen number as a ten and some ones, aligned to Common Core standard K.NBT.A.1. It prints 5 questions with an answer key on its own sheet of paper, in 25 versions, 22 of them with different questions, so no two pupils in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.
K.NBT.A.1
Fill in the missing part.
LessonPrint · K.NBT.A.1 · Set 1 · free to copy for classroom use
Set 1. Prints on its own sheet.
It practises seeing a teen number as a ten and some ones — 5 questions for Kindergarten, all on Common Core K.NBT.A.1: See the teen numbers as a ten plus some extra ones. The instruction to pupils is “Fill in the missing part”, and the answer key follows on the next sheet.
CCSS.MATH.CONTENT.K.NBT.A.1 — K.NBT.A.1, in the Number & Operations in Base Ten domain for Kindergarten. The published standard reads: “Compose and decompose numbers from 11 to 19 into ten ones and some further ones, e.g., by using objects or drawings.” The worksheet assesses that standard rather than a paraphrase of it.
Teen Numbers — Ten and Some More is written for Kindergarten, typically ages 5-6. It is one of the sheets on K.NBT.A.1, so it suits any pupil working at that standard — including older pupils revisiting it and younger ones working ahead.
Yes. All 5 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.
25 versions, of which 22 ask genuinely different questions — this skill does not have 25 distinct questions to give, so the rest reorder them and no two pupils still share a paper. Set 1 downloads all 25 as one PDF.
Yes. Teen Numbers — Ten and Some More, 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.
Yes — “Teen Numbers as Ten and Ones” is a 30-minute Kindergarten plan for K.NBT.A.1, timed section by section, with the misconceptions to expect and an exit ticket. Teen Numbers — Ten and Some More is the practice that follows it.
See the teen numbers as a ten plus some extra ones.
Teaching this next? Teen Numbers as Ten and Ones is the 30-minute plan for it, with the misconceptions to expect.
Last reviewed 2026-09-05. Aligned to K.NBT.A.1 of the Common Core State Standards for mathematics.