Question

Write a short note on the following.

Rounding - off

Answer 1

Rounding off:

While doing calculations, the result got should not has too many figures. If no case the result have more significant figures than the figures involved in the data used for calculating. The result of the calculation with numbers containing more than one uncertain digits should be rounded off.

Example :

18.35 when rounded off to 3 digits 18.4
19.45 when rounded off to 3 digits 19.4
101.55 × 10⁶ when rounded off to four digits 101.6 × 10⁶.