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Archived (2019-20) Math Problems of the Week & Solutions

 

 

 

2019 - 2020

Archived Problems of the Week   

 Solutions
 POW #1: Lining Up

 There are 21 students in Ms. Wolf's class.
 POW #2: All Aboard The train will be full at the 12th stop, with 78 passengers. 
 POW#3: What's the Sum? The sum is 99.
POW #4: Bat-tastic The wingspan is 15 feet.
POW#5:  How Many Boxes? There are a total of 40 boxes, including all sizes.
POW #6:  Painted Faces There are 20 painted faces.
POW #7: Building Blocks There are 56 blocks.
POW #8: Chickens and Rabbits Jesse had 22 chickens and 8 rabbits.
POW #9: Broken Cookies The baker had 3 whole cookies.
POW #10: Horsin' Around  It takes Zachary 8 hours to complete the journey.
POW #11:  Pizza Party Each person will receive 1 and 3/4 of a pizza.
POW #12: Starting to Save James will have enough money in his savings ($155.00) in May.
POW #13: Pizza Dough Recipe  Maria needs 2 and 1/4 cups of water to make enough dough for 9 people.
POW#14:  Birthday Trip The trip to Aunt Mazie's house is 180 miles.
POW #15:  Sums on a Clock The greatest sum on a 12-hour digital clock would be 23 (At 9:59, the sum of the digits is 23.)
POW #16: Date and Time After 20 rotations, it will be 5:00 am on March 4th.
POW#17: Balancing Equations There are many solutions including these. Email tara_washburn@psbma.org if you find others or errors.

8: 6+2=9-1, 5+3=9-1;

7= 3+4=9-2, 5+2=8-1, 3+4=8-1;

6: 2+4=7-1, 2+4=9-3,1+5=9-3, 1+5=8-2;

5: 2+3=6-1, 2+3=9-4, 4+1=8-3, 4+1=7-2;

4: 3+1=9-5, 3+1=8-4, 3+1=6-2;

3: 2+1=9-6, 2+1=8-3, 2+1=7-4, 2+1=6-3
POW#18:  Book Fair Money  Ben could have two $5.00 bills and 8 quarters OR Ben could have a $10 bill and a $1.00 and 2 quarters, 4 dimes and 2 nickels. Can you find any other combinations?
POW #19: Walking to School It takes Ben 3 minutes to walk to Lin's house.
POW #20: 30 Grapes Andrew ate 2 grapes on Monday.
POW #21: Triangles of Ten A Solution
POW #22: Magic Square Jumble  
Magic Square Jumble Answer
POW #23: Change for a Dollar Some answers are: You could have 9 dimes and 1 quarter or 8 dimes and 1 quarter, or 3 quarters and 3 dimes or....
POW #24: How Many Quadrilaterals? There are 36 different quadrilaterals.
POW#25:  Summer Camp