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