3.7C Subtracting Time Intervals

Jeremiah mowed his lawn for 30 minutes. He finished mowing at 9:30 a.m. What time did he start mowing the lawn? 

• 10:00
• 9:00
• 9:30
• 3:30

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CCSS.3.MD.A.1

Convert 93 minutes into hours.

• 2 hours and 17 min
• 2 hours
• 1 hour and 3 min
• 1 hour and 33 min

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CCSS.5.MD.A.1

• A quarter to two
• A quarter past two
• Half past five
• Ten to six

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CCSS.L.9-10.2B

• A quarter to ten
• A quarter past ten
• A quarter to eleven
• A quarter past nine

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CCSS.3.MD.A.1

Michael’s guitar class is 50 minutes long. Michael has been in class for 28 minutes. Which model shows the number of minutes remaining in the guitar class?

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Gwen needs to be at work at 8:15 am. She knows it will take her 55 minutes to get ready in the morning and 35 minutes to drive to work.

What time should Gwen get up in the morning in order to be at work on time?

• 6:45 am

• 7:20 am

• 7:40 am

• 7:15 am

Sydney and Juanita both left their houses at 7:30 a.m. to drive to work. Sydney arrived at work in 65 minutes. Juanita arrived at work 10 minutes before Sydney.

Which clock shows the time that Juanita arrived at work?

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