We included HMH Into Math Grade 3 Answer Key PDF Module 12 Review to make students experts in learning maths.
HMH Into Math Grade 3 Module 12 Review Answer Key
Vocabulary
Choose the correct term from the Vocabulary box to complete the sentence.
Vocabulary
a.m.
elapsed time
midnight
minute
p.m.
Question 1.
__________ is the amount of time that passes from the start of an activity to the end of the activity.
Answer: elapsed time
Explanation:
the actual time taken
The formula for calculating elapsed time is elapsed time = end time – start time. Subtract the minutes and hours separately
Question 2.
The times after noon and before midnight are _________ times.
Answer:
p.m.
Explanation:
Another convention sometimes used is that, since 12 noon is by definition neither ante meridiem (before noon) nor post meridiem (after noon)
Question 3.
A __________ is a unit used to measure short amounts of time.
Answer:
minute
Explanation:
a period of time equal to sixty seconds or a sixtieth of an hour.
Question 4.
The times after midnight and before noon are ___________ times.
Answer:
a.m.
Explanation:
then 12am refers to midnight at the start of the specified day (00:00) and 12pm to midnight at the end of that day (24:00).
Concepts and Skills
Question 5.
Charles wakes up for school at the time shown. At what time does he wake up? Write your answer using a.m. or p.m.
Answer:
7 : 12 a.m.
Explanation:
In morning we say the time as a.m.
The times after midnight and before noon is called a.m.
Question 6.
Use Tools Tami arrives at the bookstore at 6:08 p.m. She leaves at 6:56 p.m. How many minutes was Tami at the bookstore? Name the strategy or tool you will use to solve the problem, explain your choice, and then find the answer.
Answer:
48 minutes was Tami at the bookstore
Elapsed time.
Explanation:
6: 08 – 6: 56
Hours and minutes are subtracted separately
0 : 48
Question 7.
Select all that describe the time shown on the clock.
(A) thirty-four minutes after one
(B) thirty-four minutes after two
(C) thirty-nine minutes after one
(D) thirty-nine minutes after two
(E) twenty-one minutes before one
(F) twenty-one minutes before two
Answer:
(C) thirty-nine minutes after one
(F) twenty-one minutes before two
Explanation:
This is before and after the time.
Question 8.
Erin has a workout planned for Saturday. She starts at 10:00 a.m. Complete the table to show the start time, end time, and elapsed time of each exercise.
Answer:
Explanation:
the actual time taken
The formula for calculating elapsed time is elapsed time = end time – start time. Subtract the minutes and hours separately
Question 9.
Leo arrives at the library at 2:30 p.m. He leaves the library 75 minutes later. Draw jumps from the time Leo arrives at the library to the time he leaves the library. Place a point on the number line to show the time he leaves the library.
Answer:
Explanation:
2:30 to 3:30 is 1 hour that is 60 minutes
75 – 60 = 15 minutes
3:30 after 15 minutes is 3:45 minutes