Mathological Liar

Mathological Liar

By Tyra Price

*This information is from the game Mathological Liar. I do not own the rights.​

Directions

1. Read the Case

2. Read each suspect's alibi silently and decided if they guilty or not not guilty. Use the Scratch paper to show your work.

   1. Guilty- If their math is not correct

   2. Not guilty- If their math is correct

3. Select who you think is guilty.​

Some text here about the topic of discussion

Case #1: Adding

The Case of the Extra Extras

A movie company is coming to Star City. It promised to used the people in town as extras in the film. The company sent letters telling the people when to come to the set. But today tomany people came to the movie set. There were so many extra extras there was no room for the real stars. The mayor want to know who is behind this mix-up.

Who mixed up the extras? How do you know?​

I saw 30 people carrying shopping bags. Then, 70 more shoppers came on the set! That is 110 in all! Too many shoppers!

Robin

There were lots of children on the set today. I counted 25 boys and 25 girls. Did they really need all 50 children on the same day?

​​Charlie

I saw on of the extras at the post office. He asked for 50 stamps, and then 45 more. That's 95 in all, so of course too many people showed up.

Mrs.Cane

​

My letter told me to wear a red hat. When I got there, I saw there were 40 of us in red hats. There were also 21 people in green hats. That means there were 61 people in all wearing hats on the set!

Mr.Smith

Multiple Choice

Who is guilty?

• Robin

• Charlie

• Mrs. Cane

• Mr. Smith

Case #4: Subtraction

The Case of the Absent Acrobats

Will's Wonders is in the business of fun. This week the circus needs acrobats, dogs, and people. Will sent several groups to the circus. But some of the m never reported to work. Will thinks someone gave the acrobats the wrong address on purpose.

​

Who caused the acrobarts to miss the circus? How do you know?​

Some text here about the topic of discussion

I saw on of Will's workers buying 36 dog bones. But I only see 9 in the bin now. Maybe the worker used the missing 25 bones to keep the dogs from going to the circus.

Jeff​

​

Will sent 24 tightrope walkers to the circus. I saw 8 of them having lunch at the coffee shop. The rest of them, 16 al in all, went to the circus.

​​Haley

Will sent 25 somersaulting Scotties to the circus. Only 17 got there. I would want to know where the other 8 dogs went, too.

Stan

​I saw a group of 41 people acrobats. I counted the girls in the group. There were 19 of them. The rest were boys, so there must have been 22 of them.

​​Becca

Multiple Choice

Who is guilty?

• Becca

• Haley

• Jeff

• Stan

Case #7:Multiplication

The Case of the Flying Footballs

​​Barney's balloons is having a sale. The store is so busy that Barney hired new workers. But now the orders are all mixed up. Almost everyone is getting football balloons instead of what they ordered. Who mixed up the orders? How do you know?

Some text here about the topic of discussion

​I delivered 3 Bunches of balloons to the choir. Each bunch of Held 10football balloons. They were not happy when they saw the 30 flying football.

Rita

​The band ordered 6 turkey balloons. Instead, they got 6 Bunches of football balloons. There were 100 balloons in each Bunch. You could hardly see the band behind those 600 flying footballs.

Piper

​

The Football team really did order football balloons. They only wanted 7, though. Instead, they got 7 bunches with 100 balloons in each Bunch. What were they supposed to do with 7,000 flying footballs?

​​Warren

​The teachers ordered 10 pumpkin balloons. Instead, they got 10 bunches with 10 football balloons in each Bunch. They do not want those 100 flying footballs

​​Neil

Multiple Choice

Who is guilty?

• Neil

• Warren

• Piper

• Rita

Case #16:Rounding

The Case of the Too-Few Tadpoles

​Parker's Pond is famous for its jumping frogs. But this year the pond seems to be home to fewer frogs. Mr. Parker thinks someone is taking the tadpoles from the pond. He wants to know who is doing it. Who took the tadpoles? How do you know?

Some text here about the topic of discussion

​I pulled a bucket of water from the pond last week. There were 43 tad poles in it. I did the same thing this week, but there were only 27 tadpoles in it. That means there were between 10 and 20 fewer tadpoles.

Maddie

​There are logs missing, too. Last year, I counted 39 of them. This year, I only see 17. That means there are between 30 and 40 fewer logs.

Lilly

​

​The pond was open to visitors 93 days last year. This year, it will only be open 27 days. That means it will be open about 60 days fewer.

​​Keith

​It's a good thing there are fewer frog-jumping contests this year. Last year, there were 32 contests. This year, there will only be 19. That means there will be about 10 fewer contests.

Darren

Multiple Choice

Who is guilty?

• Lilly

• Maddie

• Keith

• Darren

Case #34:Area and Perimeter

The Case of the Odor Orders

​A truck accidentally dropped its load of pickles on the road in Hidden Falls. Now the smell of garlic pickle juice is all over the town. Harry's Hardware ran a special on stink-be-gone air freshener. The people say it doesn't work. Harry thinks one of his workers is responsible for the freshener failure. Who fiddled with the air fresheners? How do you know?

Some text here about the topic of discussion

I bought one to cover an area of 400 square feet. I added the four sides of my rectangular yard to find the area. They added up to 400.

Cody

​

My yard is shaped like a triangle. I measured the base and height. Then, I multiplied the numbers and divided my answer by 2. That gave me the area of the triangle, so I knew what to buy.

Luke

​

​

I needed one for my 100 x 100 space. I multiply the numbers to get the area. 

Maureen

​

My yard is shaped like a square. I added the four sides to get the area.

Anabelle

Multiple Select

Who is guilty?

(hint: there is more than one)

• Anabelle

• Luke

• Maureen

• Cody

Case #48:Division

The Case of the Dining Hall Disaster

​

Each summer, Campers at Cook Camp help in the dining hall. The camp counselors train the helpers. This year, the helpers are making many mistakes. The camp leader blames the counselors. He thinks they are giving the helpers the wrong information. Who is giving bad information? How do you know?

Some text here about the topic of discussion

​I said that if they need more apples, they should divide the apples by 4. Then, you will have more pieces to pass around.

Piper

​

​I said that if there wasn't enough bread, they should cut the slices in half. That way, there will be more pieces.

Kirsten

​

​

I told a helper that if 3 tables want the 1 pot of chicken soup, they should divide the soup into 3 pots. That way everyone will get more soup.

Allen

​

​

I told a helper she could divide the eggs by 12, but then the servings would be smaller.

Joe

Multiple Choice

Who is guilty?

• Piper

• Kirsten

• Allen

• Joe