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Hundreds as Groups of Ten is a free printable Grade 2 maths worksheet on one hundred is ten tens, aligned to Common Core standard 2.NBT.A.1. It prints 5 questions with an answer key on its own sheet of paper, in 25 versions, 24 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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One paper per pupil

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24 of these 25 sets ask different questions — this skill does not have 25 questions to give. The rest reorder them, so no two pupils have the same paper in front of them.

Hundreds as Groups of Ten

2.NBT.A.1

NameDate

Fill in the missing part.

1.8 hundreds = ___ tens
2.3 hundreds = ___ tens
3.6 hundreds = ___ tens
4.2 hundreds = ___ tens
5.4 hundreds = ___ tens

LessonPrint · 2.NBT.A.1 · Set 1 · free to copy for classroom use

Answer key — Hundreds as Groups of Ten

Set 1. Prints on its own sheet.

  1. 1.80
  2. 2.30
  3. 3.60
  4. 4.20
  5. 5.40

Questions about Hundreds as Groups of Ten

What does the Hundreds as Groups of Ten worksheet cover?

It practises one hundred is ten tens — 5 questions for Grade 2, all on Common Core 2.NBT.A.1: Know what each digit means in a three-digit number. The instruction to pupils is “Fill in the missing part”, and the answer key follows on the next sheet.

Which Common Core standard does Hundreds as Groups of Ten practise?

CCSS.MATH.CONTENT.2.NBT.A.1 — 2.NBT.A.1, in the Number & Operations in Base Ten domain for Grade 2. The published standard reads: “Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

Hundreds as Groups of Ten is written for Grade 2, typically ages 7-8. It is one of the sheets on 2.NBT.A.1, so it suits any pupil working at that standard — including older pupils revisiting it and younger ones working ahead.

Does Hundreds as Groups of Ten come with an answer key?

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.

How many different versions of Hundreds as Groups of Ten 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 pupils still share a paper. Set 1 downloads all 25 as one PDF.

Is Hundreds as Groups of Ten free to print and photocopy?

Yes. Hundreds as Groups of Ten, 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 2.NBT.A.1

Know what each digit means in a three-digit number.

All Grade 2 worksheets

Last reviewed 2026-09-05. Aligned to 2.NBT.A.1 of the Common Core State Standards for mathematics.