# Worksheet: Adding and Subtracting Units of Time

In this worksheet, we will practice how to measure time in hours, minutes, and seconds by using addition and subtraction and use this skill to solve word problems.

**Q2: **

The given table shows the time Noah spends on his morning activities. Calculate the total time it takes Noah to get ready and arrive at work.

Activity | Getting Ready in the Morning | Walking to the Bus Stop | Riding the Bus to Work | Walking from the Bus Stop to Work |
---|---|---|---|---|

Time | 32 minutes | 28 minutes | 55 minutes | 9 minutes |

- A3 hours
- B2 hours
- C2 hours and 9 minutes
- D2 hours and 4 minutes
- E2 hours and 55 minutes

**Q4: **

Add 11 hours and 34 minutes to 3 hours and 43 minutes.

- A15 hours and 43 minutes
- B15 hours and 17 minutes
- C15 hours
- D14 hours
- E15 hours and 34 minutes

**Q5: **

Add 7 hours, 45 minutes, and 15 seconds to 2 hours, 10 minutes, and 33 seconds.

- A 9 hours, 55 minutes, and 48 seconds
- B9 hours
- C 9 hours, 45 minutes, and 15 seconds
- D9 hours
- E 9 hours, 10 minutes, and 33 seconds

**Q6: **

Fill in the missing value: There are seconds in days.

**Q7: **

How many minutes are there in 76 and a half hours?

**Q8: **

How many seconds are there in 3 hours, 34 minutes, and 10 seconds?

**Q9: **

Fill in the missing value: hours + 25 minutes = seconds.

**Q10: **

Fill in the missing value: minutes.

**Q11: **

Fill in the missing value: 59 hours minutes days.

- A
- B
- C
- D1,536
- E

**Q12: **

Fill in the missing value: 190 minutes and 300 seconds is the same as hours.

- A
- B
- C
- D11,700
- E

**Q13: **

Fill in the missing value: days minutes hours.

**Q14: **

Fill in the missing value: .

**Q15: **

A student read a novel for of an hour, a science book for one hour , and a newspaper for of an hour. How many minutes did the student read for?

**Q16: **

How many minutes is 11 hours and 43 minutes?

**Q17: **

How many hours is 49 days and 2 hours?

**Q18: **

The table lists the final rankings in the women’s giant slalom races in the 2006 Winter Olympics. The times are recorded to the nearest hundredth of a second.

Country | Finland | United States | Sweden |
---|---|---|---|

Time | 2:09.86 | 2:09.19 | 2:10.33 |

Which two countries' times have the greatest difference?

- AUnited States and Finland
- BFinland and Sweden
- CUnited States and Sweden

**Q19: **

Charlotte went into a parking lot 3:25 pm and parked the car at 3:37 pm. Find the time it took for her to find an empty parking spot.

**Q20: **

Benjamin started doing his math homework at 11:09 pm and spent 58 minutes working on it. At what time did he finish?

- A12:07 am
- B11:57 am
- C12:07 pm
- D11:67 pm

**Q21: **

Liam wakes up at 6:12 am and he has 70 minutes to get ready to leave for school. At what time does he leave home?

- A1:12 pm
- B6:82 am
- C7:22 am
- D6:19 am

**Q22: **

The number line shows the time when Daniel called his friend on a cell phone and when the call ended. Find the duration of the call.

**Q23: **

The number line shows the time that Benjamin started playing a game of dominoes. He spent 33 minutes playing.

Which of these shows one way to find the time he finished playing?

- A
- B

What time did he finish playing?

- A10:45
- B10:51
- C10:58
- D9:39

**Q24: **

The number line shows the time that Anthony finished working on his car. He was working on it for 43 minutes.

Which of these shows one way to find the time he started?

- A
- B

What time did he start working on his car?

- A5:56
- B5:13
- C6:39
- D5:43

**Q25: **

Daniel put a meatloaf in the oven at 11:18 am. Given that it needed to bake for 2 hours and 58 minutes, at what time should he take it out of the oven?

- A02:18 pm
- B02:00 pm
- C02:00 am
- D02:16 pm
- E02:16 am