Question

Ex. 1.6.5: Write the results of following operations to the
correct number of significant figures.
Soln.:
(a)
8.3 + 13.225 = 21.525 = 21.5
Explain me because I can't understand this problem.​

Answer 1

Answer:

here they give some values like 8.3 and 13.225 we should get answer as 21.525 with operation or our answer is wrong and we know 21.525 can be done as 21.5

Answer 2

Answer:

so two number are being added

result is reported according to least no of decimal of number

8.3 has least decimal thatt is 1

so result me bhi one decimal hi hoga