Negative Exponents Basics
What is 10-1
0.1
write 1,000 as a power of 10
103
write 100,000 as a power of 10
105
write 4,500 in scientific notation
4.5x103
a red blood cell is about 8x10-6 meters wide. write this in standard form
0.000008 meters
0.001
write 0.01 as a power of 10
10-2
write 0.0001 as a power of 10
10-4
write 0.00032 in scientific notation
3.2x10-4
the population of earth is about 8.0x109. write this in standard form
8,000,000,000
10-4
which is larger: 105 or 10-5
105
10-5
compare: which is greater? 6.7x10-3 or 8.1x10-5
6.7x10-3
a bacterium is 2.5x10-7 meters long. how many times smaller is it than a human hair (1x10-4 meters) ?
400 times smaller
Simplify 10-2 x 105
103
what is 100
1
write 1,000,000,000 as a power of 10
109
convert 9.2x10-6 to standard form
0.0000092
compare 3x108 meters (distance light travels in 1 second) to 1.5x1011 meters (earth to sun) how many times larger is the earth-sun distance?
about 500 times larger
simplify 107/109
10-2 or 0.01
simplify (103)(10-6)
10-3
write 0.000000001 in exponential form
10-9
write 72,000,000 in scientific notation
7.2x107
the mass of an electron is about 9.1x10-31 kilograms. write this in standard form.
0.00000000000000000000000000000091 kg