Question 1 - Errors and their types .(English)

Question 2 - Propagation of error (English)

Question 3a -Accuracy (English)

Question 3b - Precision (English)

Question 4 - Significant figures (English)

Question 5 - Rounding off,Arithmetical Operations.(English)

Question 4,5 - Significant figures with examples and their rules.(English)

Question 6 - Absolute error Relative error and percentage error. (English)