Elapsed Time (Intro) — Answer Key
Part A: Sort the Words
Sort each word or number into the correct category box.
1. Sort each clock time by whether it is quarter past or quarter to.
Quarter past
3:155:152:15 Quarter to
3:458:4510:45 Recognizing :15 and :45 lets students read analog clocks with quarter language.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. Quarter past 4 means the time is 4:15.
A quarter of 60 is 15, so the time is 4:15.
2. Quarter to 6 means the time is 5:45.
60 minus 15 is 45, so the clock reads 5:45.
3. The time 7:15 is called quarter past 7.
7:15 comes after 7:00, so it is quarter past 7.
4. The time 9:45 is called quarter to 10.
9:45 is 15 minutes before 10:00, so it is quarter to 10.
5. A quarter of an hour equals 15 minutes.
60 divided by 4 gives 15 minutes per quarter.
Part C: True or False?
Read each statement. Circle True or False.
1. The time 2:15 is quarter past 2.
True False
Quarter past means 15 minutes past the hour, which matches 2:15.
2. The time 6:45 is quarter past 6.
True False
6:45 is 15 minutes before 7, so it is quarter to 7, not past 6.
3. Quarter to 8 shows as 7:45 on a digital clock.
True False
8:00 minus 15 minutes gives 7:45, matching quarter to 8.
4. Quarter past 5 shows as 5:30 on a digital clock.
True False
5:30 is half past 5; quarter past 5 is 5:15.