Download 1-4 Scientific Notation

6. 0.0000901
ANSWER: 1-4 Scientific Notation
–5
9.01 × 10
Express the number in standard decimal
notation form.
1. 3.16 × 103
7. The areas of the world’s oceans are listed in the
table. Order the oceans according to their area from
least to greatest.
ANSWER: 3,160
2. 1.1 × 10–4
ANSWER: 0.00011
3. 2.52 × 10–5
ANSWER: 0.0000252
ANSWER: Express the number in scientific notation.
4. 43,000
Arctic, Southern, Indian, Atlantic, Pacific
8. The space shuttle can travel about 8 × 105
ANSWER: centimeters per second. Is it more appropriate to
5
report this rate as 8 × 10 centimeters per second or
8 kilometers per second? Explain.
4
4.3 × 10
5. 0.0072
ANSWER: ANSWER: 8 kilometers per second; the number is very large so
choosing a larger unit of measure is more
meaningful.
–3
7.2 × 10
6. 0.0000901
9. The inside diameter of a certain size of ring is 1.732
ANSWER: -2
–5
9.01 × 10
7. The areas of the world’s oceans are listed in the
table. Order the oceans according to their area from
least to greatest.
× 10 meter. Is it more appropriate to report the ring
-2
diameter as 1.732 × 10 meter or 17.32 millimeters?
Explain. ANSWER: 17.32 millimeters; the number is small so choosing a
smaller unit of measure is more meaningful.
Fill in the
with <, >, or = to make a true
statement.
10. 678,000
6
6.78 × 10
ANSWER: < 11. 6.25 × 103
ANSWER: ANSWER: eSolutions
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Arctic,
Southern,
Indian,
Atlantic,
3
6.3 × 10
Pacific
8. The space shuttle can travel about 8 × 105
< 12. Apply Math to the Real World Refer to the
graphic novel frame below for Exercises a–c.
Page 1
10. 678,000
6.78 × 10
1,520,000,000 nanometers
9
9
b. Jacob: 1.7 × 10 nanometers, Sarah: 1.52 × 10
nanometers
c. Sample answers: bacteria, switches inside of
computers, fiber optic filament
6
ANSWER: 1-4 < Scientific Notation
11. 6.25 × 103
3
6.3 × 10
ANSWER: < 12. Apply Math to the Real World Refer to the
graphic novel frame below for Exercises a–c.
Use a problem-solving model to solve this
problem.
16. The attendance records at games for four
professional football teams for a recent year are
shown in the table. Which of the following lists the
teams from greatest attendance to least attendance?
a. Find Jacob’s and Sarah’s heights in nanometers.
b. Write each height using scientific notation.
c. Give an example of something that would be
appropriately measured by nanometers.
ANSWER: a. Jacob: 1,700,000,000 nanometers, Sarah:
1,520,000,000 nanometers
9
9
b. Jacob: 1.7 × 10 nanometers, Sarah: 1.52 × 10
nanometers
c. Sample answers: bacteria, switches inside of
computers, fiber optic filament
Use a problem-solving model to solve this
problem.
16. The attendance records at games for four
professional football teams for a recent year are
shown in the table. Which of the following lists the
teams from greatest attendance to least attendance?
A. W, Z, Y, X
B. Y, W, X, Z
C. Z, X, W, Y
D. X, Y, Z, W
ANSWER: C. Z, X, W, Y
17. The table shows the mass of one atom of each of
several elements. Which element has the greatest
mass per atom?
A. argon
B. helium
C. iodine
D. mercury
ANSWER: D. mercury
A. W, Z, Y, X
B. Y, W, X, Z
C. Z, X, W, Y
D. X, Y, Z, W
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ANSWER: C. Z, X, W, Y
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