Express the following numbers in
scientific notation:
(a) 0.00000000314 (b) 4,875 (c) 5,002,000
(d) 0.00054
Express the following numbers as
decimals:
(a) 2.98 × 10-4 (b) 6.25 × 108
(c) 5.07 × 10-6
Express the answers to the following calculations in
scientific notation:
205 + (2.3 × 103)
82,000 ÷ (2.0 ×
103)
(9.0 × 10-8) –
(6.0 × 10-9)
(2.0 × 108) ×
(6.5 × 1011)
Express the answers to the following calculations in
scientific notation:
0.00025 + (7.4 ×
10-5)
2,400 ÷ (6.0 ×
10-4)
45,000 – (9.0 ×
103)
(5.0 × 10-2) ×
(6.0 × 108)
Carry out the following operations as if they were
calculations of experimental results. Express answers with the
correct number of significant figures and use scientific
notation.
5.697 m + (6.2 × 10-2)
m + (5.87 × 101) m
(4.95 × 102) g ÷
(5.128 × 102) mL
(5.97 × 1024) kg
÷ (7.35 × 1022) kg (this is the ratio of
the Earth’s mass to the mass of the Moon)
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The CEO of a large company has a net
worth of 5.9 billion dollars. If this money were to be split
evenly among the 17 thousand employees of the company, how much
cash would each employee get?
A google is a search engine. A googol is a very large number:
10100. A mole is another very large number, though not
as big: A mole is 6.02 × 1023. How many moles
are in a googol?