The DAV Maths Book Class 5 Solutions and DAV Class 5 Maths Chapter 6 Worksheet 2 Solutions of Addition and Subtraction of Decimal Numbers offer comprehensive answers to textbook questions.
DAV Class 5 Maths Ch 6 Worksheet 2 Solutions
Question 1.
Complete the following:
(a) 
Solution:
(b) 
Solution:
(c) 
Solution:
(d) 
Solution:
(e) 
Solution:
(f) 
Solution:
(g) 
Solution:
(h) 
Solution:
DAV Class 5 Maths Chapter 6 Worksheet 2 Notes
If we change the order of addends the sum remains the same.
Example 1.
Add 3.6, 5.2
Solution:
3.6 + 5.2 = 8.8
5.2 + 3.6 = 8.8
The sum remains the same, even after changing the groupings of addends.
Example 2.
Add 3.1, 2.2 and 3.4
Solution:
(3.1 + 2.2) + 3.4 = 8.7
3.1 + (2.2 + 3.4) = 8.7
Grouping changed, but the sum remained the same.
If zero is added to any decimal number or a decimal number is added to zero, the sum is the number itself.
Example 3.
(a) 8.6 + 0 = 8.6
(b) 0 + 7.816 = 7.816