The DAV Class 4 Maths Solutions and DAV Class 4 Maths Chapter 8 Worksheet 4 Solutions of Time and Calendar offer comprehensive answers to textbook questions.
DAV Class 4 Maths Ch 8 WS 4 Solutions
Question 1.
Find the difference between:
(a) 4 hrs 30 min and 5 hrs 50 min.
Answer:
1 hr 20 min
(b) 7 hrs 45 min and 9 hrs 50 min.
Answer:
2 hrs 5 min
(c) 3 hrs 35 min and 6 hrs 15 min.
Answer:
2hrs 40min
(d) 5 hrs 45 min and 7 hrs 20 min.
Answer:
1hr 35min
Question 2.
What time will it be:
(a) 2 hrs before 3:30 a.m.?
Answer:
1:30 a.m.
(b) 4 hrs before 7:10 a.m.?
Answer:
3:10 a.m.
(c) 2 hrs before 11:05 pm.?
Answer:
9:05 p.m.
(d) 3 hrs before 6:20 pm.?
Answer:
3:20 p.m.
DAV Class 4 Maths Chapter 8 Worksheet 4 Notes
Subtraction (with Regrouping)
Example:
Find the difference between 6 h 20 min and 1 hr 25 min. hrs min
We cannot subtract 25 min from 20 min. We shall borrow 1 hr from 6 hr.
Answer:
4 hrs 55 min.