How many significant figures should be present in the answer of the following calculations?

(i)

(ii)

(iii) 0.0125 + 0.7864 + 0.0215

(i) = 1.648

Least precise number of calculation = 298.15

Number of significant numbers in result = Number of significant figures in least precise number = 2

Correct Answer = 1.65

(ii) Calculated Answer = 26.82

Least precise number of calculation = 5.364

Number of significant numbers in result = Number of significant figures in least precise number = 3

Correct Answer = 26.820

(iii) Calculated Answer = 0.8204

Number of significant numbers in result = Number of significant figures in least precise number = 4

Correct Answer = 0.8204