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O'Clock and Half Past Mixed is a free printable Grade 1 maths worksheet on distinguishing whole and half hours in one set, aligned to Common Core standard 1.MD.B.3. It prints 8 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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One paper per pupil

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All 25 sets ask different questions.

O'Clock and Half Past Mixed

1.MD.B.3

NameDate

What time is it later?

1.121234567891011
What time is it 30 minutes later?
2.121234567891011
What time is it 90 minutes later?
3.121234567891011
What time is it 75 minutes later?
4.121234567891011
What time is it 45 minutes later?
5.121234567891011
What time is it 30 minutes later?
6.121234567891011
What time is it 15 minutes later?
7.121234567891011
What time is it 120 minutes later?
8.121234567891011
What time is it 45 minutes later?

LessonPrint · 1.MD.B.3 · Set 1 · free to copy for classroom use

Answer key — O'Clock and Half Past Mixed

Set 1. Prints on its own sheet.

  1. 1.5:30
  2. 2.11:00
  3. 3.1:15
  4. 4.11:45
  5. 5.7:00
  6. 6.6:15
  7. 7.1:00
  8. 8.7:45

Questions about O'Clock and Half Past Mixed

What does the O'Clock and Half Past Mixed worksheet cover?

It practises distinguishing whole and half hours in one set — 8 questions for Grade 1, all on Common Core 1.MD.B.3: Read a clock to the hour and half hour. The instruction to pupils is “What time is it later?”, and the answer key follows on the next sheet.

Which Common Core standard does O'Clock and Half Past Mixed practise?

CCSS.MATH.CONTENT.1.MD.B.3 — 1.MD.B.3, in the Measurement & Data domain for Grade 1. The published standard reads: “Tell and write time in hours and half-hours using analog and digital clocks.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

O'Clock and Half Past Mixed is written for Grade 1, typically ages 6-7. It is one of the sheets on 1.MD.B.3, so it suits any pupil working at that standard — including older pupils revisiting it and younger ones working ahead.

Does O'Clock and Half Past Mixed 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 O'Clock and Half Past Mixed 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 O'Clock and Half Past Mixed free to print and photocopy?

Yes. O'Clock and Half Past Mixed, 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 1.MD.B.3

Read a clock to the hour and half hour.

All Grade 1 worksheets

Last reviewed 2026-09-05. Aligned to 1.MD.B.3 of the Common Core State Standards for mathematics.