Elapsed Time. The difference between two times. Step 1 Count the Hours For example: 7:10 – 10:55.

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Presentation transcript:

Elapsed Time

The difference between two times.

Step 1 Count the Hours For example: 7:10 – 10:55

Step 1 Count the Hours For example: 7 :10 – 10 :55 3 hours

Step 2 Count the Minutes For example: 7:10 – 10:55

Step 2 Count the Minutes For example: 7: 10 – 10: minutes

Step 3 Write the elapsed time 3 hours and 45 minutes

How long does it take to fly from Houston to Orlando? Departure Time Houston 8:00 am Arrival Time Orlando 11:10 am From 8:00 am to 11:00 am is 3 hours. Count 10 minutes from 11:00 am until 11:10 am

Mountains and Hills Some of you may choose to use this strategy to help you count the elapsed hours and minutes. Departure Time Houston 8:00 am Arrival Time Orlando 11:10 am Use mountains for hours and hills for minutes.

Mountains and Hills cont. Steps: 1.Write the starting time. 8:00 am Draw a mountain to the next hour. 3. Draw mountain until only minutes remain 4. Draw a hill for the minutes 5. Add the hours and minutes * Sometimes you will have more than 60 minutes and will need to make an hour 9:0010:0011:0011:30

Ex. Departure Time Houston 2:55 p.m. Arrival Time Orange County 4:35 p.m.

ANSWER It takes 1 hours and 40 minutes to fly from Houston to Orange County.

Natalie and Maria left the school at 3:05 pm. They walked for 14 minutes before arriving at Maria’s house. What time did they arrive at Maria’s house? 3: = 3:19

The Garza’s will visit their cousin, who lives 3 hours and 10 minutes away. They want to get there at 11:30 am. What time should they leave? Subtract the time 11:30 – 3:10 = 8:20 They need to leave at 8:20 am.

The sun set at 7:00 pm. It rose the next morning at 5:15 am. How much time passed from sunset to sunrise? Count the hours 7:00 – 5:15 (10 hours) Count the minutes 7:00 – 5:15 (15 minutes) From sunset to sunrise, there was 10 hours and 15 minutes.

Mario scored a touchdown at 7:48 pm. Julio intercepted a pass and scored a touchdown 11 minutes later. What time did Julio score the second touchdown? Count the minutes 7: = 59. Julio’s touchdown happened at 7:59 pm.

Your dance partner arrives at 3:30 pm and leaves at 7:45 pm. How long did you practice together? Count the hours 3:30 – 7:45 (4 hours) Count the minutes (15 minutes) You practiced 4 hours and 15 minutes together.

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