Racing Seconds Class 5 Maths Worksheet with Quiz and Activities
Race against the clock with seconds, minutes and hours. Learn the 12-hour and 24-hour clock and find the time that passes. On WitKnowLearn you get the Racing Seconds Class 5 online quiz, online activities and interactive games, a clock lab, a virtual lab and a worksheet-style practice sheet for NCERT Math Mela Chapter 12.
Racing Seconds Class 5 Online Quiz
20 questions: 10 easy, 5 average and 5 thinking. Tap an answer and the next question comes up.
Racing Seconds Class 5 Activities
👆 Tap a tab to switch: Learn, Games, Labs, Challenges, Virtual Lab and Practice sheet
Racing Seconds: the Race Day Story
A short read for Class 5 before you play. These notes follow Chapter 12 of NCERT Math Mela.
⏱️ Seconds in a race
Three friends walk 200 m and all take about 1 minute. Seconds show who was a little faster. One round of the seconds hand is 60 seconds.
⏰ Hours and minutes
1 hour is 60 minutes, so 3 hours 20 minutes is 180 + 20 = 200 minutes.
🔢 Minutes and seconds
1 minute is 60 seconds, so 5 minutes 45 seconds is 300 + 45 = 345 seconds.
🕛 The 24-hour clock
After noon we add 12 to the hour, so 07:30 p.m. is 19:30 hours. There is no a.m. or p.m. on this clock.
🕐 Time that passes
From 10:20 a.m. to 12:50 p.m. is 2 hours and 30 minutes. Count up to the hour, then add the rest.
📖 Case studies
Breaks, races, journeys and laps all need time sums. Change everything to one unit before you compare.
Racing Seconds Class 5 Activities
Race against the clock on the Number Train. Earn up to 3 stars in every activity.
This page follows NCERT Class 5 Maths Math Mela, Chapter 12. Children use seconds for short times, read the 12-hour and 24-hour clock, change hours to minutes and minutes to seconds, and find the time that has passed.
The activities turn each idea into a game. Children sort activities by unit, pop true facts, match words, fill gaps and solve race stories. Explore more Class 5 maths worksheets on WitKnowLearn after this chapter.
Formulas and facts to know
| 12-hour | 24-hour |
|---|---|
| 06:00 a.m. | 06:00 hours |
| 12:00 noon | 12:00 hours |
| 03:00 p.m. | 15:00 hours |
| 11:00 p.m. | 23:00 hours |
How to use this page
- Flip the six cards and try the Clock Lab in the Learn tab.
- Play the five games and the five labs to practise each idea.
- Finish the five challenges to collect up to 15 points.
- Take the 20-question online quiz, with assertion and reason and case study questions, and fill in the practice sheet.
Worked examples
4 × 60 = 240 and 240 + 10 = 250 minutes.
8 × 60 = 480 and 20 are left, so 8 minutes 20 seconds.
12:45 + 15 minutes = 01:00, then 35 more minutes gives 01:35 p.m.
This Racing Seconds worksheet for Class 5 maths gives you online activities and interactive games that make time fun. Every activity has a goal, a hint and a short fact, so children learn while they enjoy.
Complete Guide: NCERT Class 5 Maths Racing Seconds Chapter 12
This guide is for Class 5 students, parents and teachers. It covers Chapter 12 of NCERT Math Mela and shows how to use the quiz, labs and games on this page.
Introduction to Racing Seconds
The chapter begins with time elapsed on a clock, then brings in the 12-hour and 24-hour formats and seconds. Children convert between hours, minutes and seconds and solve time problems.
What is there in this chapter
- Time elapsed between two clock times.
- Comparing the time taken by different children.
- The 12-hour and 24-hour formats.
- Seconds and the seconds hand.
- Choosing seconds or minutes for an activity.
- Hours to minutes and back.
- Minutes to seconds and back.
- Adding and subtracting time.
Learning objectives
- Read time on a clock in seconds.
- Write time in the 12-hour and 24-hour formats.
- Convert hours, minutes and seconds.
- Find the time that has passed.
- Reason about assertions and case studies.
Learning outcomes
- The child can write 07:30 p.m. as 19:30 hours.
- The child can find that 5 minutes 45 seconds is 345 seconds.
- The child can find that 04:15 p.m. plus 2 hours 30 minutes is 06:45 p.m.
- The child can solve a case study on races and breaks.
Racing Seconds Class 5 resources on this page
| Resource | What it gives |
|---|---|
| Online quiz | 20 questions: 10 easy, 5 average and 5 thinking, with assertion and reason and case study questions and a full review |
| Flip cards | 6 picture cards with one-line rules |
| Clock Lab | A hands-on lab with 3 rounds |
| Games | 5 interactive games |
| Labs | 5 activity labs |
| Virtual Lab | 2 experiments with aim, procedure, observation table and conclusion |
| Challenges | 5 challenges, 15 points in all |
| Practice sheet | A worksheet-style sheet with 16 questions, name and date lines and a live score |
Key facts
| Idea | Rule |
|---|---|
| Minute | 1 minute = 60 seconds. |
| Hour | 1 hour = 60 minutes. |
| p.m. to 24-hour | Add 12 to the hour. |
| 24-hour to p.m. | Subtract 12 from the hour. |
| Elapsed time | Count up to the hour, then add. |
Types of questions you may see
- Convert hours, minutes and seconds.
- Write times in the 12-hour and 24-hour formats.
- Find the start time, end time or time taken.
- Assertion and reason questions.
- Case study questions on races, breaks and journeys.
Solved examples
22 - 12 = 10, so 10:10 p.m.
180 + 10 = 190 seconds.
It ends at 10:15 a.m.
He started at 05:40 p.m.
5 × 52 = 260 seconds.
3 hours = 180 minutes, so 200 minutes is longer.
Common mistakes
| Mistake | Correct idea |
|---|---|
| Thinking 1 hour is 100 minutes. | 1 hour is 60 minutes. |
| Adding 12 to a morning hour. | Only afternoon and night hours add 12. |
| Writing 90 minutes as 1 hour 90 minutes. | 90 minutes is 1 hour 30 minutes. |
| Comparing 2 minutes with 100 seconds as 2 and 100. | Change both to seconds first. |
Racing Seconds in daily life
Races, cooking, trains, school timetables and phone timers all use hours, minutes and seconds. Good time sense helps children plan their day.
Tips for parents and teachers
- Time everyday actions with a stopwatch.
- Read a train timetable in 24-hour time.
- Use a clock with a seconds hand.
- Practise one assertion and one case study each week.
Related Class 5 Maths Worksheets
- 🚆We the Travellers I Class 5 (NCERT Chapter 1)
- 🔄Angles as Turns Class 5 (NCERT Chapter 3)
- 📏Far and Near Class 5 (NCERT Chapter 5)
- 🐄The Dairy Farm Class 5 (NCERT Chapter 6)
- 🔷Shapes and Patterns Class 5 (NCERT Chapter 7)
- ⚖Weight and Capacity Class 5 (NCERT Chapter 8)
- 🥥Coconut Farm Class 5 (NCERT Chapter 9)
- 🪞Symmetrical Designs Class 5 (NCERT Chapter 10)
- 🧵Grandmother’s Quilt Class 5 (NCERT Chapter 11)
- 🌡Time and Temperature Class 5
- 📏Measurement Class 5
- 📐Perimeter and Area Class 5
Racing Seconds Class 5 FAQs
What is Chapter 12 of NCERT Class 5 Maths Math Mela?
Chapter 12 is Racing Seconds. It covers elapsed time, the 12-hour and 24-hour clock, seconds as a unit, converting hours to minutes and minutes to seconds, and adding or subtracting time in word problems.
How many seconds are in a minute?
There are 60 seconds in 1 minute. When the seconds hand makes one full round of the clock, the minute hand moves one step. So 3 minutes is 3 x 60 = 180 seconds.
How many minutes are in an hour?
There are 60 minutes in 1 hour. So 2 hours is 120 minutes and 3 hours 20 minutes is 3 x 60 + 20 = 200 minutes.
How do you convert hours to minutes?
Multiply the hours by 60 and add the extra minutes. For 2 hours 15 minutes, 2 x 60 = 120 and 120 + 15 = 135 minutes.
How do you convert minutes to hours and minutes?
Divide by 60. The quotient is the hours and the remainder is the minutes. So 135 minutes is 2 hours 15 minutes, because 2 x 60 = 120 and 15 are left.
How do you convert minutes to seconds?
Multiply the minutes by 60 and add the extra seconds. For 5 minutes 45 seconds, 5 x 60 = 300 and 300 + 45 = 345 seconds.
What is the 24-hour clock?
The 24-hour clock counts the hours from 00 to 23 and does not use a.m. or p.m. Midnight is 00:00 hours and 1 p.m. is 13:00 hours.
How do you change p.m. time to 24-hour time?
For times after noon, add 12 to the hour. So 07:30 p.m. is 19:30 hours and 03:00 p.m. is 15:00 hours. Morning times stay the same.
How do you change 24-hour time to 12-hour time?
If the hour is more than 12, subtract 12 and write p.m. So 22:10 hours is 10:10 p.m. Hours before 12 are a.m., with the same number.
What is elapsed time and how do you find it?
Elapsed time is the time that has passed between a start time and an end time. Count up to the next hour first and then add the rest. From 02:10 p.m. to 02:55 p.m. it is 45 minutes.
How do you add time to a clock time?
Add the hours first and then the minutes. Start 04:15 p.m. plus 2 hours 30 minutes is 06:15 p.m. plus 30 minutes, which is 06:45 p.m.
What can children do on this page?
Children can take a 20-question online quiz with assertion and reason and case study questions, play five games, try five online activities, finish five challenges, run the Clock Lab and two virtual experiments, and fill in a 16-question practice sheet with a Show answers button.
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