Which is greater,
4.87 x 109 or 9.212 x 108?
1
Scientists estimate that a whale might
eat 6.3 x 104 pounds of plankton in a
week. Write this amount of plankton in
standard notation.
3
Lainey read 15,700 words of her
book on her family’s road trip to
the beach. Write the number of
words that she read in scientific
notation.
2
Shawn said that in standard notation,
7.142 x 107 will have 7 zeros after the
2 because the exponent is a 7. Is he
correct? Why or why not?
4
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One of the lightest animals, a
hummingbird, can weigh as little as
3.5 x 10-3 pounds. Convert this weight
to standard notation.
5
Macie converted 0.000456 to
4.56 x 104. Is she correct?
Why or why not?
7
Which is greater,
3.65 x 10-8 or 3.65 x 10-7?
6
Max read that there are about 321
million cubic miles of water in the
Earth’s oceans. Write this
amount using scientific
notation.
8
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A single plankton measures as
small as 0.0000002 meters.
Convert this measurement to
scientific notation.
Scientists found two whales that
have a combined weight of
8.4 x 105 pounds. Write this weight
in standard notation.
9
10
One great white shark weighs 5,000
pounds, while a second weighs
4.7 x 103. Find the combined weight
of the sharks. Write your answer in
standard notation.
11
A whale can swim 30 miles per hour.
If a whale did not stop swimming for
5 days straight, how many miles
would it have traveled? Write your
answer in scientific notation.
12
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Solve the following, and express
your answer in scientific notation.
(8.23 x 109) + (9.1 x 109)
13
One blue whale weighed 4.2 x 105
pounds while another weighed
2.6 x 105. Find the difference in
weight, and express your answer in
scientific notation.
A shark can take in 600 cubic
meters of water in a day when it is
feeding. If a shark has taken in
3 x 104 cubic meters of water,
how many days has it been
feeding? Write your answer in
standard notation.
14
Solve the following, and express
your answer in scientific notation.
(7.66 x 104) - (5.4 x 104)
15
16
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The Atlantic Ocean covers about
4.1 x 107 square miles, and
the Pacific Ocean covers about
6.38 x 107 square miles. Find the
total square miles covered by both
oceans, and express
your answer in
scientific notation.
17
Solve the following, and express
your answer in scientific notation.
(1.32 x 104) ÷ (1.1 x 10-2)
19
Solve the following, and express
your answer in scientific notation.
(6 x 104)(9.1 x 106)
18
A humpback whale can eat 4.4 x 103
plankton a day during feeding
season. If feeding season lasts 120
days, find the total number of
plankton a humpback would eat by
the end of feeding season. Write
your answer in scientific notation.
20
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Solve the following, and express
your answer in scientific notation.
.000027 x (3.5 x 108)
21
A shark can grow 2 x 104 teeth in a
lifetime. If humans only grow about
50 teeth in a lifetime, how many
times more teeth does a shark grow
in a lifetime than a human?
Write your answer in
standard notation.
23
The average depth of the Pacific
Ocean is about 1.52 x 104 feet, and
the average depth of the Atlantic
Ocean is about 1.09 x 104 feet.
How much deeper is the average
depth of the Pacific Ocean?
Write your answer in
scientific notation.
22
Solve the following, and express
your answer in scientific notation.
(3.2 x 107) + 10,800,000
24
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A bottlenose dolphin can make
1 x 103 clicking noises per second.
How many clicking noises could a
bottlenose dolphin make in one hour?
Express your answer in scientific
notation.
25
Solve the following, and express
your answer in scientific notation.
36,000,000 ÷ (4.5 x 103)
27
Solve the following, and express
your answer in scientific notation.
(5.5 x 10-3) – 0.0003
26
A baby blue whale can gain up to
200 pounds a day after it is born.
If a baby blue whale has gained
7 x 103 pounds since its birth, how
many days old is it? Express your
answer in standard
notation.
28
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