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Error Arithmetic Operations Of Significant Figures - BYJU'S


Learn the rules for arithmetic operation of significant figures in a detailed manner. ... is rounded off so that it has the same number of digits as the measurement ...


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Krishna
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Rules for Significant Figures

https://byjus.com/chemistry/significant-figures/

Given that

Total mass of the box = 2.30 kg

Masses of gold pieces = 20.15 g \text{ and } 20.17 g


a) Total mass of the box

Total mass of the box = 2.30 kg, Significant figures = 3  

Masses of gold pieces 1 = 20.15 g = 0.02015 kg, Significant figures = 4  

Masses of gold pieces 2 = 20.17 g = 0.02017 kg, Significant figures = 4

Total mass = 2.30 + 0.02015 + 0.02017   

= 2.34032

= 2.3

Significant figures = 2


b) Difference in the mass of pieces

=20.17g-20.15g

= 0.02

Significant figures = 2