Math Worksheet · Grades 1–3
Digital Clocks Worksheet
A 3-page digital-clocks worksheet for grades 1-3. Students translate between word form and digital HH:MM form across 12 fill-in-the-blank items in Section A (six word-to-digital and six digital-to-word), then solve 4 short digital-format word problems in Section B that include the leading-zero rule. Includes a complete answer key.
Subject
Math
Grades
Grades 1–3
Skill Focus
Digital Clocks, telling time
Lesson Length
20 minutes
Lesson Overview
About this worksheet
A digital clock shows time as HH:MM. The cognitive moves are simple but easy to confuse on first encounter: the digits BEFORE the colon are the hour (1 through 12), and the digits AFTER the colon are the minutes (00 through 59). When the minutes are less than 10, the digital display always writes a leading zero – 4:05 is correct; ‘4:5’ is not standard – because the minutes field is always exactly two digits.
The reference box at the top of page 1 states the HH:MM format rule in plain language and gives two worked examples: 7:25 (seven twenty-five) and 4:05 (four oh five – the leading-zero case). Both examples are explicitly NOT reused in any assessed item so students cannot pattern-match the answers from the reference.
Section A on page 1 has 12 fill-in-the-blank items in a 2-column, 6-row layout. The first six items translate WORD form to digital form (three thirty -> 3:30, nine oh five -> 9:05, twelve oh seven -> 12:07, etc.), and the last six items translate digital form to WORD form (2:45 -> two forty-five, 10:00 -> ten o’clock, 1:08 -> one oh eight, etc.). The mix forces students to apply the leading-zero rule in both directions.
Page 2 has 4 short word problems with work boxes (1.10in) that probe the same skills in context: read 6:08 out loud, write the digital form for ‘four oh nine in the morning’ including AM, identify the LAST minute that takes a leading zero (the answer is 9 – minutes 00 through 09 use a leading zero), and a count-forward item where 3:00 plus 30 minutes equals 3:30. Page 3 is a complete answer key.
How to Use This Lesson
Project a digital wall clock or phone clock and read several times out loud to warm up the format.
Project page 1 and walk students through the reference: ‘The two digits before the colon tell us the HOUR. The two digits after the colon tell us the MINUTES.’
Work Section A item 1 (three thirty -> 3:30) together; ask students which two digits are the hour and which two are the minutes.
Demo the leading-zero rule explicitly using Section A item 3 (nine oh five -> 9:05). Write ‘9:5’ on the board and ask why it’s wrong.
Assign the rest of Section A independently; remind students that any time before ten minutes past the hour writes a 0 in the tens-of-minutes spot.
Read Section B item 15 (LAST minute with a leading zero) together; have students list 00, 01, 02 … and identify when the zero drops off (at 10).
Use the answer key on page 3 for self-check or aide spot-check.
Printable Resource
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Full Member Resource · Printable PDF · 3 pages · Answer Key
Digital Clocks Worksheet
A 3-page digital-clocks worksheet for grades 1-3. Students translate between word form and digital HH:MM form across 12 fill-in-the-blank items in Section A (six word-to-digital and six digital-to-word), then solve 4 short digital-format word problems in Section B that include the leading-zero rule. Includes a complete answer key.
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