ISCI 2002 - Scientific Notation/Significant Digits
Name _LaShawn
Harris_____________
1. Convert each of the following into scientific notation.
a) 3427
b) 0.00456
c) 123, 453
d) 172
e) 0.000984
k) 2205.2
l) 30.0 10
2
m) 0.982 10
3
n) 0.0473
o) 650,502
f) 0.502
2
p) 3.03 10
4
q) 20.4 10
g) 3100.0 10
1
5
h) 0.0114 10
i) 107.2
2. Determine the number of significant figures in each of the following:
a) 3427
2
m) 0.982 10
h) 0.0114 10
4
n) 0.0473
i) 107.2
o) 650,502
d) 172
j) 0.0000455
p) 3.03 10
e) 0.000984
k) 2205.2
g) 3100.0 10
b) 0.00456
c) 123, 453
5
q) 20.4 10
f) 0.502
3. Convert each into standard numeral (decimal) form.
4
5
a) 1.56 10
e) 0.00259 10
b) 0.56 10
2
f) 13.69 10
c) 3.69 10
2
g) 6.9 10
5
d) 736.9 10
4
2
1
3
4. Calculate the following. Give the answer in correct scientific notation. (multiplication
exponents are added/ addition & subtraction exponents of 10 must be the same value/
division exponents are subtracted)
a)
3.95 102
1.5 106
4.44 107
b)
2.25 105
1.05 10 26
c)
4.2 1056
6.022 1023
d)
3.011 10 56
2
10
e) (3.5 10 )(6.45 10 )
12
f) (4.50 10
)(3.67 10
9
12
)
4
g) (2.5 10 )(6.45 10 )
2
h) (6.88 10 )(3.45 10
10
)
5. Round each of the following to 3 significant figures.
a) 77.0653
b) 6,300, 278.2
c) 0.00023350
d) 10.2030
21
e) 2.895 10
6. Calculate the answer, use the correct number of significant figures – answer in scientific
notation(except # d)
a) (0.32)(14.50)(120)
b) (24.1)/(0.005)
c) (3.9)(6.05)(420)
d) (14.1) / 5