EnVision Math
Topic 7:
Lesson 7-5
Time:
Elapsed Time Review
2010-11

How can I tell the time using numbers and words?

10:58 fifty-eight minutes after ten two minutes before eleven

2:07 seven minutes after two fifty-three minutes before three

6:51 fifty-one minutes after six nine minutes before seven

quarter after eight
8:15

half past two
2:30

quarter of four
3:45

quarter past twelve
12:15

quarter till twelve
11:45

quarter to six
5:45

How can I find elapsed time?
How can I use elapsed time to find start times and end times?

5:25
6:25
7:25
4:25 p.m. to 7:50 p.m.
7:50
3 hours
7:25
25 minutes

Start Time = 7:45 a.m.
Elapsed Time = 3 hours, 25 minutes
8:45
9:45 10:45
10:45
End Time =

Elapsed Time = 2 hours, 40 minutes
5:35
4:35
4:35
End Time = 6:35 p.m.

My friend arrived at my house at 4:25 p.m.
We played games until he left at 6:36 p.m.
How long was my friend at my house?
5:25
6:25
6:36 6:25
Elapsed Time = ?2 hours, 11 minutes

The Junior High play started at
9:35 a.m. It lasted for 39 minutes.
What time did the play end?
9:35

The Halloween party ended at 9:00 p.m. It lasted for 2 hours and 40 minutes. What time did the party start?
7:00
8:00
7:00

The Raptor Assembly started at
1:37 p.m. It lasted for 1 hour and
6 minutes. What time did it end?
2:37
2:37
End Time = ?2:43 p.m.

My family started carving pumpkins at
11:40 a.m. We finished our last pumpkin at
2:13 p.m. How long did we carve pumpkins?
12:40
1:40
2:13
1:40
Elapsed Time = ?2 hours, 33 minutes

Mom finished baking cookies at 4:30 p.m.
She baked for 3 hours and 40 minutes.
What time Mom start baking?
3:30
2:30
1:30
1:30