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Problem of the Day
Chapter 9
5th Grade
 Amanda
follows a pattern for saving
money each week for one year. In
Week 1 she saved $1.00; in Week 2,
$1.60; in Week 3, $2.20; and in Week
4, $2.80. During which weeks will she
save $6.40? $8.80?
 A number
is doubled and then
increased by 300. Then 50 is
subtracted from the result. The final
number is 404. Find the original
number.
 The
sum of four decimals is 9. Each
decimal is 0.5 greater than the
previous decimal. What are the
decimals?
 The
product of 0.4 and another
decimal is less than 0.4 but greater
than 0.3. What are the least and
greatest decimals, to the nearest
hundredth, for the other factor?
 The
product of two whole numbers is
30. If 10 is added to the first number
and 8 is added to the second number,
the new product is 208. What are the
two numbers?
 Without
using exponents, find the
greatest number you can make using
two different operations, parentheses,
and the numbers 5, 20, and 30.
 What
are the next two numbers in this
sequence? Describe the sequence.
1 4
2
8
4
16
8
?
?
If the pattern below continues, what will
be the letter in the 30th position?
MATHMATHMATH
 Four
students are waiting in line in the
cafeteria. Maria is directly behind
Brad. Kevin is not first but is directly
in front of Aretha. In which order are
the students standing in line?
 Four
friends buy a pizza for $9 and
divide the cost equally. How many
one-dollar bills and which coins,
except for pennies, can each friend
use to pay for the pizza?
 Jason
had scores of 75, 88, 96, 75,
and 92 on his science tests this
semester. What are the range, mode,
median, and mean of these scores?
 What
is the cost of this design if
▲=$0.05, ●=$1.10, and ♥=$0.25?
▲●♥▲♥▲♥▲♥▲♥●▲
Answer Key
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Week 10; Week 14
77
1.5, 2.0, 2.5, 3.0
0.76; 0.99
6 and 5
30 x (20+5)=750
32, 16; multiply by 4, divide by 2
A
Brad, Maria, Kevin, Aretha
Each friend pays with 2 one-dollar bills combined with a
quarter, 2 dimes, and 1 nickel, 1 dime and 3 nickels, or 5
nickels.
21; 75; 88; 85.2
$3.75