Question

why there is a need of rounding of figures during calculation​

Answer 1

Answer:

For easy calculation.

Explanation

Let's take an example:-

Suppose we have 49.8+29.9 to calculate. Adding both numbers with their decimal points will be little bit tricky but when we rounding of figures then it will be so simple.

  50(49.8)+30(29.9)=80

    49.8+29.9=79.7 nearly 80