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 =



Answer :

Since there are no conversions to be done just add them as is
a) 1 g
b) 1.0 kg
c) 22 L
d) 3.6 cm
e) 104.9 g

The answer will be 0.75 gram, 1 kilo-gram, 22 L, 2.76 cm, and 104.9 gram.

What is gram?

A metric unit with mass and weight equal to approximately 15.432 grains, or one-thousandth of a kilo-gram, is called a gram.

Calculation of given question.

a) 7 gram - 3.5 gram - 2.75 gram = 0.75 gram

b) 200.00 kg - 199.0 kg  = 1 kilo-gram

c) 25 L - 3.0 L = 22 L

d) 0.67 cm + 2.0 cm + 0.090 cm = 2.76 cm

e) 104.5 g + 0.40 g = 104.9 gram

To know more about gram

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