Adding and Subtracting Time Intervals

What is the first step in adding time?

• Adding the hours

• Adding the minutes

• Guessing what time it is

• Crying

Tags

CCSS.3.MD.A.1

What is the second step in adding time?

• Counting on your fingers

• Subtracting 60 minutes and adding one hour

• Adding the minutes

• Checking the time

Tags

CCSS.3.MD.A.1

If it is 11:25 AM and you need to leave in 15 minutes, what time do you need to leave at?

• 1:00 PM

• 11:10 AM

• 12:05 PM

• 11:40 AM

Tags

CCSS.3.MD.A.1

If the minutes add to over 60, what should you do?

• Subtract 60 minutes and add 1 hour

• Add 60 minutes and subtract one hour

• Add 60 minutes and add one hour

• Subtract 60 minutes and subtract one hour

Tags

CCSS.3.MD.A.1

What is 30 minutes more than 1:05?

• 1:45

• 2:05

• 1:35

• 12:10

Tags

CCSS.3.MD.A.1

What is 1 hour past 1:00 PM?

• 2:00 PM

• 12:00 AM

• 2:00 AM

• 11:00 PM

Tags

CCSS.3.MD.A.1

Five hours plus three hours equals

• 2 hours

• 7 hours

• 8 hours

• 1 hour

Tags

CCSS.3.MD.A.1

3 h 15 min

+ 2 h 28 min

• 5 h 33 min

• 5 h 53 min

• 5 h 43 min

• 5 h 38 min

Tags

CCSS.3.MD.A.1

It is quarter past 3. Your mom says dinner will be in about two hours and fifteen minutes. At what time will dinner be?

• 5:00

• 5:30

• 6:00

• 6:30

Tags

CCSS.3.MD.A.1

2 h 47 min

+ 8 h 31 min

• 10 h 68 min

• 11h 18 min

• 10h 18 min

• 11h 7 min

Tags

CCSS.3.MD.A.1