Whole Tens
1.NBT.B.2
Fill in the missing part.
LessonPrint · 1.NBT.B.2 · Set 1 · free to copy for classroom use
Whole Tens is a free printable Grade 1 maths worksheet on multiples of ten as tens with no ones, aligned to Common Core standard 1.NBT.B.2. It prints 5 questions with an answer key on its own sheet of paper, in 25 versions, 23 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.
Set 1 of 25 · the same problems every time you open this link.
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Fill in the missing part.
LessonPrint · 1.NBT.B.2 · Set 1 · free to copy for classroom use
Set 1. Prints on its own sheet.
It practises multiples of ten as tens with no ones — 5 questions for Grade 1, all on Common Core 1.NBT.B.2: Know that in 47, the 4 means four tens and the 7 means seven ones. The instruction to pupils is “Fill in the missing part”, and the answer key follows on the next sheet.
CCSS.MATH.CONTENT.1.NBT.B.2 — 1.NBT.B.2, in the Number & Operations in Base Ten domain for Grade 1. The published standard reads: “Understand that the two digits of a two-digit number represent amounts of tens and ones.” The worksheet assesses that standard rather than a paraphrase of it.
Whole Tens is written for Grade 1, typically ages 6-7. It is one of the sheets on 1.NBT.B.2, 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 23 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. Whole Tens, 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.
Know that in 47, the 4 means four tens and the 7 means seven ones.
Last reviewed 2026-09-05. Aligned to 1.NBT.B.2 of the Common Core State Standards for mathematics.