Scientific Notation
Write in scientific notation:
74,250,000,000
7.425 x 1010
Compare, using <, >, or =
2.375 x 10-5 ____ 4.73 x 10-2
<
The Sahara desert is 3.629 x 106 km2 and the Arabian desert is 9 x 105 km2. Which is larger, and how much larger is it?
Sahara
2,729,000 km2 larger
Write in scientific notation:
0.0000034
3.4 x 10-6
Compare, using <, >, or =
142 x 102 _____ 1.42 x 104
=
If the population of the US is 3.1 x 108 people and the population of Canada is 3.38 x 107 people, find the total population of the two countries. Write your answer in scientific notation.
3.438 x 108 people
Write in standard form:
2.76 x 105
276,000
The area of four oceans (in km2) are listed below. Put them in order least to greatest.
Pacific: 1.7966 x 108
Arctic: 1.323 x 107
Atlantic: 1.061 x 108
Indian: 7.498 x 107
Arctic
Indian
Atlantic
Pacific
The population of a country is 291 million people. The total health care costs of the country were $1.7 trillion. How much was spent per person?
$5841.92
Write in standard form:
8 x 10-3
0.008
Which number is not in proper scientific notation?
a) 4.6 x 106
b) 12.5 x 10-3
c) 9 x 103
d) 8.76 x 100
b