Friday, April 16, 2010

Let's Make a Deal!


Daniel brought home a poster from the book fair. He had paid $25 for it. Brandon saw the poster and gave Daniel $35 for it. A few days later, Daniel bought the poster back for $45. Then he sold it again, this time to his friend Whitney for $55.
Did Daniell make money on his transactions, or lose money?

Saturday, March 27, 2010

Heads & Legs


Mrs. Hayes looks out her window into the playground. She sees a mix of boys and dogs. She counts 22 heads and 68 legs. She wants YOU the Math Masters to figure out how many boys are in the yard.

Sunday, March 21, 2010

What Time is It?


What is the number missing from the following sequence? By figuring out the relationship of these watch settings to one another, you should be able to determine what time will show up on Watch E.

WATCH A 5:23
WATCH B 8:26
WATCH C 12:30
WATCH D 5:35
WATCH E ______

Saturday, March 13, 2010

Kevin's New Room


Kevin is selecting floor tiles for his room in his family's new house. No tiles will be put down in the closets. Each tile is 1 foot square and costs $0.60. All the intersecting sides of the tiles meet at right angles.
How much will the tiles cost if there are no tiles left over?

Sunday, March 7, 2010

All Four are Probably Probability!


14,500 people are sitting in a stadium. One of them is picked out. What are the chances that that person's birthday is on a Sunday?



You drop two coins into a muddy river by mistake. You saw one falling in, a dime. You know the other one had to be either a dime, or a nickel. After searching and pulling out one, and discovering it's a dime, what is the chance that the other is also a dime?


Kailyn likes strawberries, blueberries, and apples. She put bananas, apples, oranges, cherries, and blueberries into a basket. There are 36 fruits in the basket total. There are 7 bananas, 4 apples, 11 oranges, 8 cherries, and the rest blueberries. What is Kailyn's chance of picking out a fruit that she likes?



If I have:a normal coin with a heads and tails;a 6-sided die;and a bag containing 4 blue and 2 red marbles,what is the probability of me flipping a heads, rolling a 4, and picking out a red marble?

Sunday, February 28, 2010

Oh No! The Boys are in the Kitchen!


Caleb, Houston, Blake, Daniel, and Dakota made 87 muffins altogether.

  • Houston made 16 muffins. He put nuts in 1/4 of them.

  • Caleb made 1 less muffin than Houston. One third of them had nuts.

  • Blake and Daniel each made 3 more muffins than Caleb made.

  • Blake put nuts in 1/3 of his muffins.

  • Daniel put nuts in 1/2 of his muffins.

  • Dakota put nuts in 1/4 of his muffins.

How many muffins in all had nuts?

Friday, February 19, 2010

Hoop Time


Player A Player B Player C Player D Player E
9
10
12
13
11
14
16
16
13
16
19
18
16
14
18
15
17
19
17
17
13
12
13
12
15

Daniel, Blake, Houston, Michael, and Ryan often play a half-hour-long game of basketball. They keep track of the number of points each player has earned each game. The scores are listed above.

  • The mean of both Daniel's and Blake's scores is 17.
  • The median of Michael's scores is 3 less than the median of Houston's scores.
  • The mean of Ryan's scores is less than the mean of any other player's scores. There is no mode of Ryan's scores.
  • The mode of Daniel's scores is 1 more than the mode of Blake's scores.
  • There is one player whose scores yield 2 modes.

Which scores belong to which player?