Perform the following calculations. Express the answers with the correct number of significant figures.
a) 7 g - 3.5 g - 2.75 g =
b) 200.00 kg - 199.0 kg =
c) 25 L - 3.0 L =
d) 0.67 cm + 2.0 cm + 0.090 cm =
e) 104.5 g + 0.40 g =
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