Students can use the Spectrum Math Grade 3 Answer Key Chapter 8 Posttest as a quick guide to resolve any of their doubts.

Check What You Learned

Complete the following.

Question 1.
a. 4: 15 means ___________ minutes after ____________.
4:15 means 15 minutes after 4,

Explanation:
Given 4:15 means 15 minutes after 4 respectively.

b. 4:15 means ____________ minutes to ____________.
4:15 means 45 minutes to 5 hours,

Explanation:
Given 4:15 means 45 minutes to 5 hours respectively.

Question 2.
a. 12:55 means ____________ minutes after ____________.
12:55 means 55 minutes after 12 hours,

Explanation:
Given 12:55 means 55 minutes after 12 hours respectively.

b. 12:55 means ____________ minutes to ____________.
12:55 means 5 minutes to 13:00,

Explanation:
Given 12:55 means 5 minutes to 13 hours respectively.

Question 3.
a. 6:40 means ____________ minutes after ____________.
6:40 means 40 minutes after 6 hours,

Explanation:
Given 6:40 means 40 minutes after 6 hours.

b. 6:40 means ____________ minutes to ____________.
6:40 means 20 minutes to 7 o’ Clock,

Explanation:
Given 6:40 means 20 minutes to 7 o’ Clock.

Tell the time to the nearest hour, half hour, quarter hour, or minute as indicated.

Question 4.

a. hour
_______ : _________
7:00,

Explanation:
Given time indicates 7:19 in the clock so, the time to the nearest hour is 7 hours .

b. half hour
_______ : _________
7:30,

Explanation:
Given time indicates 7:19 in the clock. So half is 30 minutes so nearest to half hour is 7:30.

c. quarter hour
_______ : _________
7:15,

Explanation:
Given time indicates 7:19 in the clock so, in a clock each quarter represents 15 minutes, so time nearest to quarter is 7:15.

d. minute
_______ : _________
7:20,

Explanation:
Given time indicates 7:19 in the clock so, the minute hand lies between 15 to 20. So time nearest to minute is 7:20

Solve. Show the elapsed time on the number line.

Question 5.
Fiona takes her puppy to the park at 8:40 a.m. She goes to the lake, then to a friend’s house, and gets home at 12:10 p.m. How much time was Fiona out of the house?

3 hours 30 minutes,

Explanation:
Given time when Fiona takes puppy to the park is 8:40 a.m. And time when Fiona gets home is 12:10 p.m.
time took between them is first convert them into minutes 8:40 = (8 X 60) + 40= 480 + 40 = 520 minutes and 12:10 =(12Â  XÂ  60) + 10 = 720 + 10 = 730 minutes. Now subtract from ending time to starting time that is 730 minutes – 520 minutes = 210 minutes that is 3 hours 30 minutes.

Question 6.
Jonathan goes to school at 8:50 a.m. The last bell rings at 3:05 p.m. How much time is Jonathan at school?