Math Can Take You Places


Do The Math

CONTEST FOR STUDENTS AND TEACHERS

2008 WINNING ENTRIES


 

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2008 Do the Math Winning Student Entries -ANSWERS

 

Kindergarten Winners

Grand Prize:  Andrew Dever

Richardson ISD

Andrews receives star points for good behavior.  When he reaches 60 star points, he gets to go to a Dallas Stars hockey game.  He has 42 star points.  How many more star points does Andrew need to reach his goal?

Answer: 18 star points

 

Runner Up (Tie):  Brielle Kohn

Home-Schooled Student

Haltom City, TX

Sadie was having fun on her birthday with eight friends.  One more friend came to the party.  How many friends were at Sadie’s the party?

Answer: 9 friends

 

Runner Up (Tie):  Lydia Radke

Home-Schooled Student

Duncanville, TX

One day Lydia went for a walk and saw three butterflies.  When she was eating lunch she saw four more butterflies.  When she was riding in the car she saw six butterflies.  How many butterflies did she see altogether?

Answer: 13 butterflies

 

First Grade Winners

Grand Prize:  Caitlyn Clarke 

Carroll ISD

I saw nine ladybugs in a tree.  Three more ladybugs landed in the tree.  How many ladybugs did I see?

Answer: 12 ladybugs 

 

Runner Up:  Rachel Anderson

Home-Schooled Student

Frisco, TX

Rachel has four stuffed animals.  She wants to buy nine more.  How many stuffed animals will Rachel have if she buys nine more?

Answer: 13 stuffed animals

 

Second Grade Winners

Grand Prize:  Raquel Dalcour

Plano ISD

Today is October 30th and Rachel’s birthday is November 20th.  How many days until Rachel’s birthday?

Answer: 22 days

 

Runner Up:  Ryan Seltzer

Carroll ISD

Ryan and Hutton each made five gingerbread men.  Parker came over and ate 1 ½ cookies.  How many gingerbread men did they have left?

Answer: 8 ½ cookies

 

Third Grade Winners

Grand Prize:  Jared Greer

Faith Christian School

Lewisville, TX

John had a $25.00 gift card for iTunes from his birthday.  He found 27 songs he liked.  Each song costs .99 cents each.  He had three movies he had been saving for and bought them for $14.99 each.  Just as he was about to check-out, he found 2 more movies he liked but only wanted to rent them.  The rental fee was $2.99 per movie.   How much of this own money would John have to spend?

Answer: $59.09

 

Runner Up:  Connor Hoskins 

The Children’s Workshop

Plano, TX

Joseph has a model car collection of twenty cars.  His grandpa gives him one car for his birthday and one for Christmas.  How many more years before he has 28 cars?

Answer: 4 years

 

Honorable Mention:  Hasnat Ahmad

Hurst-Euless-Bedford ISD

The first week of summer my Mom ordered pizza from a fancy restaurant.  We ordered 2 boxes of 20 slices of pizza for dinner.  Me and my family ate a fraction of 23 slices out of the 2 boxes.  What is the fraction of the pizza we ate?  What is the fraction of the pizza we did not eat?

Answer: 23/40; 17/40

 

Fourth Grade Winners

Grand Prize:  Sophia Radke

Home-Schooled Student

Duncanville, TX

There are 24 kids in Sophia’s Running Club.  They want to “run” to the White House which is 1, 323 miles away.  The club will collect miles for 10 weeks.  If each runner runs the same distance each week, about how far will each runner need to run every week in order for the club to collect 1,323 miles?

Answer: About 5.5 miles each week

 

Runner Up:  Ellie Perkovich

McKinney ISD

It is 400 miles to Chicago.  If you drive 50 miles per hour and take three 15-minute bathroom breaks and take one hour for lunch, how many hours will it take to reach Chicago?

Answer: 9 hours and 45 minutes 

 

Fifth Grade Winners

Grand Prize:  Aayush Goyal

Plano ISD

112 ants lived in one ant hill.  An anteater came and ate 1/7 of the ants.  The queen ant gave birth to 47 more ants.  Another anteater came and ate 1/11 of the ants in the ant bed.  How many ants remain in the hill?

Answer: 130 ants

 

Runner Up:  Ethan Taliaferro

Castleberry ISD

James works at a grocery store.  When James looked at the sales chart, the store had earned $20,000 dollars every day, for the past week.  The next week, James looked at the sales chart again and the sales had gone up by 25%.  The Third week the sales had dropped by 10%.  What was the amount of money made in the third week?

Answer: $157,500

 

Honorable Mention:  Jason Renfrew

Dallas ISD

Michael wanted to buy his five friend lunch at Peter Piper Pizza.  Two kids wanted pepperoni pizza and a small Dr. Pepper each.  Three kids wanted cheese pizza and a medium Mountain Dew each and Michael wanted a sausage pizza and a large Root Beer.  How much money did Michael spend?

Menu:

PIZZA

Cheese Pizza-$1.75

Add Pepperoni-75 cents

Add Sausage-65 cents

Add olives-95 cents

Add mushrooms-85 cents

DRINKS

Small-75 cents

Medium-$1.50

Large-$1.75

 

Circle the correct answer below:

A.     $18.65

B.     $16.25

C.     $20.40 (Answer)

D.     Not Here 


Sixth Grade Winners

Grand Prize: Sam Bush

Highland Park ISD

There are 1,500 people living in a poor village.  1/3 of them are children.  It costs forty cents a day to feed each child.  If a class of thirty students raises $5.00 per student for each week of the school year (a total of 40 weeks) for to the children, in the village, how many days can they provide food for the children?

Answer: 30 days

 

Runner Up:  Blake Lanter

Mansfield ISD

My Mom and Dad are training for a marathon.  To prepare they ran in several races in the area.  Charted below are their race results for two 5K runs, two 10K runs and a half marathon.  What was the total time for each of them?  Who ran the fastest overall?  What was the difference in their total times?

Dad                                                   Mom
       Hours       Mins.     Seconds           Hours        Mins.           Seconds
Half    2                 7                 49                2                 7                 55
10K    1                0                 16                1                 0                 12
10K    1                0                 10                1                 0                 4
5K                       29                50                                  29                38
5K                       29                40                                  29               30

Answer: Dad:  5 hours, 7 minutes, 45 seconds; Mom:  5 hours, 7 minutes, 19 seconds; mom was the faster overall by 26 seconds

 

Honorable Mention:  Miguel Rodriguez

Mansfield ISD

One day, a boy wanted more money for his allowance so he could buy an Xbox 360 that costs $160.00.  He asked his Dad if would give him a penny each day and double the amount each day for two weeks and one day.  He did all of his chores and he did a little extra to help so his Dad gave him one more day of money extra.  Then, he went and bought games to play on his Xbox.  Each game costs $20.00 and he bough 8.  How much money does he have?  How much money did he waste on the games? Can he still buy his Xbox?

Answer: He has $327.68; he spent $160.00 on games; yes, he can buy his Xbox

 

 
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