## Math Problem of the Week - Week 15

Congratulations! You are the proud owner of a brand new restaurant called Chez Moi. Running a restaurant requires organization, creativity, and math skills.

Each Monday, a new math problem will be posted here. Do some brilliant thinking and submit your answer(s).

If you get the problem right, your first name and city will be posted to the "Menu of Excellence" (look for your name at the bottom of that week's problem).

We will also track your points from week to week. Problem-solvers with the highest totals will be included (and much admired) in the Problem Solving Hall of Fame. Are you ready? Good luck!

Each Monday, a new math problem will be posted here. Do some brilliant thinking and submit your answer(s).

If you get the problem right, your first name and city will be posted to the "Menu of Excellence" (look for your name at the bottom of that week's problem).

We will also track your points from week to week. Problem-solvers with the highest totals will be included (and much admired) in the Problem Solving Hall of Fame. Are you ready? Good luck!

## Math Problem of the Week 15
Alex and Ethan are entering a building contest. They decide to build a model of your cafe. Their structure uses 138 red blocks. If they had 5 more blue blocks, they would have three times as many blue blocks as they have red blocks. There are 2/3 as many yellow blocks as there are red blocks.
How many blocks have Alex and Ethan used in their structure all together? |

Common Core Standards for this Problem: 3.OA.8, 4.NF.3

Congratulations to the following students, who solved this problem correctly:

Gabe, Wichita, KS
Lexie, Wichita, KS Allison, Wichita, KS Vivian, Wichita, KS Liliana, Wichita, KS Ian, Wichita, KS Jacob, Wichita, KS |