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Convert Mass is a free printable Grade 5 maths worksheet on between grams and kilograms, aligned to Common Core standard 5.MD.A.1. It prints 12 questions with an answer key on its own sheet of paper, in 25 versions that each ask 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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All 25 sets ask different questions.

Convert Mass

5.MD.A.1

NameDate

Fill in the missing number.

1.5 kg = ___ g
2.12 kg = ___ g
3.6 kg = ___ g
4.2 tonnes = ___ kg
5.6 tonnes = ___ kg
6.7 tonnes = ___ kg
7.8 kg = ___ g
8.3 kg = ___ g
9.3 tonnes = ___ kg
10.8 tonnes = ___ kg
11.4 kg = ___ g
12.11 tonnes = ___ kg

LessonPrint · 5.MD.A.1 · Set 1 · free to copy for classroom use

Answer key — Convert Mass

Set 1. Prints on its own sheet.

  1. 1.5000
  2. 2.12000
  3. 3.6000
  4. 4.2000
  5. 5.6000
  6. 6.7000
  7. 7.8000
  8. 8.3000
  9. 9.3000
  10. 10.8000
  11. 11.4000
  12. 12.11000

Questions about Convert Mass

What does the Convert Mass worksheet cover?

It practises between grams and kilograms — 12 questions for Grade 5, all on Common Core 5.MD.A.1: Convert between units of measurement. The instruction to pupils is “Fill in the missing number”, and the answer key follows on the next sheet.

Which Common Core standard does Convert Mass practise?

CCSS.MATH.CONTENT.5.MD.A.1 — 5.MD.A.1, in the Measurement & Data domain for Grade 5. The published standard reads: “Convert among different-sized standard measurement units within a given measurement system, and use these conversions in solving multi-step real world problems.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

Convert Mass is written for Grade 5, typically ages 10-11. It is one of the sheets on 5.MD.A.1, so it suits any pupil working at that standard — including older pupils revisiting it and younger ones working ahead.

Does Convert Mass come with an answer key?

Yes. All 12 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 Convert Mass can I print?

25 — one per pupil, and all 25 ask different questions. Set 1 downloads the whole class as a single PDF. Every version is fixed to its own address, so a sheet printed today holds the same problems when you reopen it next week.

Is Convert Mass free to print and photocopy?

Yes. Convert Mass, 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.

Is there a lesson plan to teach 5.MD.A.1?

Yes — “Converting Measurement Units” is a 50-minute Grade 5 plan for 5.MD.A.1, timed section by section, with the misconceptions to expect and an exit ticket. Convert Mass is the practice that follows it.

More practice for 5.MD.A.1

Convert between units of measurement.

Teaching this next? Converting Measurement Units is the 50-minute plan for it, with the misconceptions to expect.

All Grade 5 worksheets

Last reviewed 2026-09-05. Aligned to 5.MD.A.1 of the Common Core State Standards for mathematics.