Problems of the Week - January 24 to January 30

Lower Elementary:

Question: Brooklyn has 154 blocks and Victoria has 342. They combine their blocks to build a castle, and they use all but 12 of them. How many blocks did Brooklyn and Victoria use on the castle?

Upper Elementary:

Question: Eli picks up 288 seashells at the beach. He divides them evenly among 12 boxes. Then, he gives 7 boxes of seashells to Lincoln. How many seashells does Lincoln get?

Middle School:

Question: A sheet cake is 12 inches wide, 18 inches long, and 4 inches deep. Layla cuts a 4-inch by 4-inch slice of cake from the corner. How many cubic inches of cake are left?

Algebra and Up:

Question: A chocolatier receives an order for a 10-pound chocolate statue whose cacao content is exactly 40%. The chocolatier has 20% cacao chocolate and 50% cacao chocolate at his disposal. How many pounds of each does he need to melt together to have exactly the right amount for the statue?