The DAV Maths Book Class 5 Solutions and DAV Class 5 Maths Chapter 9 Worksheet 4 Solutions of Rounding Numbers offer comprehensive answers to textbook questions.
DAV Class 5 Maths Ch 9 Worksheet 4 Solutions
Question 1.
Round off the following numbers to the nearest ten lakh.
(a) 38,60,123
Solution:
38,60,123 → 40,00,000
(b) 72,21,123
Solution:
72,21,123 → 70,00,000
(c) 11,11,111
Solution:
11,11,111 → 10,00,000
(d) 93,98,562
Solution:
93,98,562 → 90,00,000
(e) 49,28,619
Solution:
49,28,619 → 50,00,000
(f) 65,00,000
Solution:
65,00,000 → 70,00,000
Question 2.
Round off the following numbers to the nearest crore.
(a) 3,86,49,005
Solution:
3,86,49,005 → 4,00,00,000
(b) 8,25,00,000
Solution:
8,25,00,000 → 8,00,00,000
(c) 9,04,93,888
Solution:
9,04,93,888 → 9,00,00,000
(d) 3,33,33,333
Solution:
3,33,33,333 → 3,00,00,000
(e) 7,15,94,333
Solution:
7,15,94,333 → 7,00,00,000
(f) 9,15,32,643
Solution:
9,15,32,643 → 9,00,00,000
DAV Class 5 Maths Chapter 9 Worksheet 4 Notes
Rounding off to the nearest ten lakh (10,00,000) and one crore (1,00,00,000)
In order to round off numbers to the nearest ten lakh, look at the digit in the one lakh place.
Example 1.
Round off the given numbers to the nearest ten lakh.
Solution:
50,00,000
70,00,000
90,00,000
1,00,00,000
In order to round off numbers to the nearest crore, look at the digit in the ten lakhs place.
Example 2.
Round off the following numbers to the nearest crore.
Solution:
3,00,00,000
9,00,00,000
10,00,00,000