NOVEMBER's PROBLEM 
Jennifer buys a smartphone with a case for $200. The smartphone costs $180 more than the case. What is the cost of the case? 
[A
solution to this problem will appear along with next month’s problem.
OCTOBER's PROBLEM  
As shown, three 3digit numbers have a 4digit sum. Different letters represent different digits. What is the greatest prime factor of the sum, ACCA? 
[ 37 ]
SEPTEMBER's PROBLEM 
An inexpensive toy normally sells for 20 cents each. At a special reduced price, a store sold all of its toys, one at a time, for a total of $3.91. How many of these toys were sold if the reduced price is a whole number of cents? 
[
23
(at 17 cents each)
AUGUST's PROBLEM 
David removes 30% of the water in a jar. He then removes 40% of what remains in the jar. What percent of the original amount of water is now in the jar? 
[
42%

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