- CROSSWORD PUZZLES A crossword puzzle is
made up of 15 rows and 15 columns of small squares.
Forty-six of the squares are blacked out. When
completed, how many squares in the crossword
puzzle will contain letters?
78 Chapter 1 Whole Numbers
Number of Number of Number of
Year sets of twin sets of triplets sets of quadruplets
2005 133,122 6,208 418
2006 137,085 6,118 355U.S. Multiple BirthsSource:National Vital Statistics Report, 2009- TREES The height of the tallest known tree
(a California Coastal Redwood) is 379 feet. Some
scientists believe the tallest a tree can grow is 47 feet
more than this because it is difficult for water to be
raised from the ground any more than that to support
further growth. What do the scientists believe to be
the maximum height that a tree can reach? (Source:
BBC News)
© Zack Frank, 2009. Used under license from Shutterstock.com- CAFFEINE A 12-ounce can of regular Pepsi-Cola
contains 38 milligrams of caffeine. The same size can
of Pepsi One has 18 more milligrams of caffeine. How
many milligrams of caffeine are there in a can of
Pepsi One? (Source: wilstar.com) - TIME There are 60 minutes in an hour, 24 hours in a
day, and 7 days in a week. How many minutes are
there in a week? - LENGTH There are 12 inches in a foot, 3 feet in a
yard, and 1,760 yards in a mile. How many inches are
in a mile? - FIREPLACES A contractor ordered twelve pallets
of fireplace brick. Each pallet holds 516 bricks. If it
takes 430 bricks to build a fireplace, how many
fireplaces can be built from this order? How many
bricks will be left over? - ROOFING A roofer ordered 108 squares of shingles.
(A squarecovers 100 square feet of roof.) In a new
development, the houses have 2,800 square-feet roofs.
How many can be completely roofed with this
order?
1234 8
12 15
16
19 20 21 22
23 24 25
26 27 28 29 30
31
36 37 38 39 40
41 42 43 44 45
46 47 48 49
50 51
52
61 62 63 64
65 66 67
68 69 7053 54 555657 58596032 33 34 351813 14
17567 91011- CHESS A chessboard consists of 8 rows, with
8 squares in each row. Each of the two players has
16 chess pieces to place on the board, one per square.
At the start of the game, how many squares on the
board do not have chess pieces on them? - CREDIT CARDS The balance on 10/23/10 on Visa
account number 623415 was $1,989. If purchases of
$125 and $296 were charged to the card on 10/24/10, a
payment of $1,680 was credited on 10/31/10, and no
other charges or payments were made, what is the
new balance on 11/1/10? - ARIZONA The average high temperature in
Phoenix in January is F. By May, it rises by F, by
July it rises another and by December it falls
What is the average temperature in Phoenix in
December? (Source: countrystudies.us) - RUNNING Rod Bellears, age 59, has run the
miles from his Upper Skene Street home to his
business at Moolap Concrete Products and back
every day for more than 20 years. That distance is
equal to three times around the Earth. If one trip
around the Earth is 7,926 miles, how far has
Mr. Bellears run over the years? (Source:Greelong
News) - DIAPERS Each year in the United States, 18 billion
disposable diapers are used. Laid end-to-end, that’s
enough to reach to the moon and back9 times. If the
distance from the Earth to the moon is about
238,855 miles, how far do the disposable diapers
extend? (Source: diapersandwipers.com) - DVDs A shopper purchased four Blu-ray DVDs:
Planet Earth($59),Wall-E($26),Elf($23), and
Blade Runner($37). There was $11 sales tax. If he
paid for the DVDs with $20 bills, how many bills
were needed? How much did he receive back in
change?
(^12 12)