Name ________________________________________ Date___________________ Class _________________
Bellringers for the week of Sept 28th , 2015
Monday: Work and answers go in your spiral notebook.
1. (3.25 
2. (4.78 

Tuesday: Work and answers go in your spiral notebook.
3. (4 × 10-2) – (6 × 10-5)
4.(10 × 10-3) – (2 × 10-6)
Wednesday: Work and answers go in your spiral notebook.
In constructing the Mall of America in Minnesota, a total of 1.3  104
tons of steel were used. The Eiffel Tower in Paris, France
consists of 7  103 tons of steel.
About how many times the amount of steel it took to construct
the tower did it take to construct the mall? Round your answer to
the nearest hundredth. _________________
Thursday: Work and answers go in your spiral notebook.
The mass of earth is 5.98  1024 kg. The mass of the moon is
7.35  1022 kg. How many more kilograms make up the earth than
the moon? Round your answer to the nearest hundredth.
_________________
Friday: Work and answers go in your spiral notebook.
Yellowstone National Park has an estimated 2.5  106 visitors each
year. The Great Smoky Mountains National Park is the most
visited of all the National parks, and it has approximately four
times the amount of visitors annually that Yellowstone has.
How many visitors does The Great Smoky Mountains National
Park have annually? __________________
Name ________________________________________ Date___________________ Class _________________
th
Homework for the week of Sept 28 , 2015
Monday: Work and answers in folder.
1. Delaware has an area of approximately 1.95  103 square miles. The area of the state
of California is 80 times as great as the area of Delaware. What is the approximate area
of California in square miles?
2. A square box lid has an area of 40 square inches. Which is the best estimate of the
length of one side?
3. Laura is making a mosaic using ceramic tiles that are one-inch squares. If she uses 64
tiles to make a square mosaic, how long is each side of the mosaic?
4. A square sheet of art paper has an area of 625 square inches. What is the minimum side
length of an easel that supports the whole sheet of paper?
5. Find the two square roots of
169
.
196
6. A square area of land is 529 square feet. What is the length of one side of a fence
around this area?
7. A fence surrounds a square-shaped 600 ft2 meadow. To the nearest tenth of a foot, find
the length of one side of the fence.
8. Give 3 examples of irrational numbers.
Tuesday: Work and answers in folder.
1. Rhode Island is the smallest state. It has an area of approximately 1.55  103 square
miles. Alaska is the largest state. The area of Alaska is 4.28 102 times greater than the
area of Rhode Island. What is the approximate area of Alaska in square miles?
2. Perform the following operations and express the answers in scientific notation.
a.
b.
c.
d.
3. Give two examples of something that is NOT a real number.
4. What is the standard notation equivalent of 3  102?
Holt McDougal Mathematics
Name ________________________________________ Date___________________ Class _________________
Wednesday: Work and answers in folder.
1. Between 2008 and 2009, Americans spent $8.48  108 on baby food. During the same
period, Americans spent $4.52  109 on ice cream. How much did Americans spend
altogether on ice cream and baby food between 2008 and 2009?
2. Perform the following operations and express the answers in scientific notation.
a.
b.
c.
d.
3. What is the standard notation equivalent of 6.2391  10–2?
4. Write this number in scientific notation: 0.000562
Thursday: Work and answers in folder.
1. Approximately 3.25  106 cubic yards of material were used to build Boulder Dam on the
Arizona-Nevada border. The New Cornelia Tailings Dam in Arizona used 2.74 108
cubic yards of material. How many more cubic yards of material were used to build the
Cornelia Tailings Dam than Boulder Dam?
2. Perform the following operations and express the answers in scientific notation.
a.
b.
c.
d.
3. What is the standard notation equivalent of 3.46 104?
4. Write 3,480,000,000 in scientific notation.
Friday: Test
No Homework
Holt McDougal Mathematics