Add/Subtract Decimals Mystery

Max's Stolen

​Burger

​Max was at his favorite diner and left the table to use the restroom. When he returned he found that his burger has been stolen. Luckily for Max, you are great at helping solve mysteries, so you decide to take up the case. Interview the townspeople and solve clues to narrow down the suspects list and find out who took Max's burger.

​Clue One: The Waiter

Multiple Choice

The waiter informs you that he had a great clue about the suspect. After speaking to the waiter, you are able to conclude. (Solve the equation to find the clue.)

24.5+1.9=

• 24.68

  The suspect did not order large fries.

• 26.4

  The suspect is not allergic to dairy

​Clue Two:

The Diner Counters

Multiple Choice

The height of the diner counter is 12.5 inches. The tile on top of the counter is 0.72 inches. How tall is the diner counter and tile top altogether?

• 19.7

  The suspect is a male.

• 19.5

  The suspect was not at the jukebox.

• 13.22

  The suspect is female.

• 13.77

  The suspect ordered a milkshake.

​Clue Three:

​The food

Multiple Choice

Solve the equation to find the next clue.

9.45+0.29=

• 9.79

  The suspect did not order fries.

• 9.84

  The suspect does not drink diet soda.

• 9.74

  The suspect did not order a large milkshake.

​Clue Four: The Customers

Multiple Choice

8.05+1.97=

You are able to talk to some of the patrons at the diner. You can now conclude:

• 10.02

  The suspect goes to the diner ofren.

• 10.47

  The suspect was not at the jukebox.

​Clue Five: Check the Jukebox

Multiple Choice

7.72+0.91=

You go to the jukebox to ask some patrons what they know about your suspect. You are able to conclude:

• 86.3

  The suspect does not drink diet soda.

• 8.63

  The suspect was not sitting in the back of the diner.

​Clue Six: Money spent per day

Multiple Choice

The suspect spends $2.12 per day at the diner. Select the true statement about how much they would spend to find you next clue.

• $4.21 for 2 days

  The suspect's name does not start with the letter A

• $6.31 for 3 days

  The suspect's name does not start with the letter T

• $8.48 for 4 days

  The suspect's name does not start with the letter M

​Clue Seven:

Where was the suspect?

Multiple Choice

Solve the equation to find the next clue.

8.93-6.5=

• 2.43

  The suspect was not at a barstool.

• 3.43

  The suspect was somewhere buying food.

​Clue Eight: Where was the suspect?

Multiple Choice

Solve the equation to find the next clue.

6.77-3.8=

• 3.07

  The suspect was at the jukebox.

• 3.27

  The suspect was not ordering at the counter.

• 2.97

  The suspect was not at the jukebox.

​Clue Nine

Multiple Choice

Solve the equation to find the next clue.

87.4+0.46=

• 86.86

  The suspect did not order fries.

• 87.86

  The suspect was not in a car outside the diner.

​Clue Ten

Multiple Choice

Solve the equation to find the next clue.

6.63+3.4=

• 10.03

  The suspect was sitting at the front of the diner.

• 10.07

  The suspect was at the jukebox.

• 10.04

  The suspect's name does not start with a T.

​Clue Eleven

Multiple Choice

The local radio has learned about Max's missing burger. You tune in at 5pm and learn that: 

3.03+9.4=

• 12.43

  The suspect's name does not start with a J.

• 12.34

  The suspect is not allergic to dairy.

• 12.44

  The suspect did not leave a big tip.

​Clue Twelve

Multiple Choice

Solve the equation to find the person that stole Max's burger.

9.73+8.6=

• 18.13

  The suspect left a big tip.

• 18.23

  The suspect's name does not start with S

• 18.33

  The suspect does not drink diet soda.

Fill in the Blanks