The Case of the Missing Championship Trophy
The giant Championship Trophy has vanished from the Grand Sports Arena right before the big game! The trophy keeper needs your help to examine the locker rooms, check the gear, and find out which athlete took it.
Possible suspects
Cross off a row as each clue rules it out. On screen, tap a row.
| Name | Signature Move | Lucky Gear | Stance | Hairstyle | Distraction |
|---|---|---|---|---|---|
| Tom Brady | Bicycle Kick | Platinum Bat | Right Handed | Curly Buzzcut | Loud Whistle |
| Simone Biles | Bicycle Kick | Grip Gloves | Right Handed | Curly Buzzcut | Bright Flashlight |
| Candace Parker | Power Serve | Platinum Bat | Right Handed | Spiky Crop | Loud Whistle |
| Maya Moore | Power Serve | Laser Goggles | Right Handed | Spiky Crop | Squeaky Shoes |
| Venus Williams | Bicycle Kick | Platinum Bat | Right Handed | Sleek Ponytail | Loud Whistle |
| Luka Doncic | Power Serve | Laser Goggles | Right Handed | Sleek Ponytail | Loud Whistle |
| Serena Williams | Bicycle Kick | Golden Cleats | Right Handed | Curly Buzzcut | Bright Flashlight |
| Shohei Ohtani | Curveball Strike | Grip Gloves | Left Handed | Spiky Crop | Bright Flashlight |
| Katie Ledecky | Fast Break Dunk | Golden Cleats | Left Handed | Curly Buzzcut | Bright Flashlight |
| LeBron James | Fast Break Dunk | Platinum Bat | Left Handed | Sleek Ponytail | Squeaky Shoes |
| Cristiano Ronaldo | Power Serve | Grip Gloves | Right Handed | Spiky Crop | Bright Flashlight |
| Patrick Mahomes | Bicycle Kick | Neon Whistle | Right Handed | Curly Buzzcut | Bright Flashlight |
| Steph Curry | Bicycle Kick | Grip Gloves | Right Handed | Sleek Ponytail | Bright Flashlight |
| Megan Rapinoe | Power Serve | Laser Goggles | Right Handed | Spiky Crop | Bright Flashlight |
| Alex Morgan | Curveball Strike | Platinum Bat | Left Handed | Spiky Crop | Squeaky Shoes |
| Wayne Gretzky | Goalie Save | Golden Cleats | Right Handed | Spiky Crop | Squeaky Shoes |
| Shaquille O Neal | Goalie Save | Platinum Bat | Right Handed | Curly Buzzcut | Squeaky Shoes |
| Giannis Antetokounmpo | Curveball Strike | Grip Gloves | Right Handed | Curly Buzzcut | Bright Flashlight |
| Naomi Osaka | Power Serve | Laser Goggles | Left Handed | Spiky Crop | Bright Flashlight |
| Chloe Kim | Power Serve | Grip Gloves | Left Handed | Curly Buzzcut | Squeaky Shoes |
| Marta Vieira | Bicycle Kick | Platinum Bat | Right Handed | Curly Buzzcut | Bright Flashlight |
Addition
Coach Cruz adds up all the practice points from both morning and afternoon training sessions.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Subtraction
The referee subtracts the penalty points from the scoreboard total to find the true count.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Multiplication facts (1-12)
The equipment manager calculates total gear by multiplying the rows of locker bins.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Rounding
The stadium digital display rounds off the precise runner times to the nearest full second.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Division facts (1-12) — the last clue
The team captain splits the energy drinks evenly among all the players on the bench.
First solve each problem. Then find each answer in the list below and cross that sentence out. One sentence will be left — that's exactly what the villain did!
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Missing Championship Trophy
- Clue 1 (Addition): "THE VILLAIN DOES NOT USE A NEON WHISTLE"187 + 120 = 307 (T) · 446 + 424 = 870 (H) · 339 + 335 = 674 (I) · 309 + 455 = 764 (A) · 299 + 540 = 839 (E) · 476 + 283 = 759 (S) · 456 + 252 = 708 (V) · 478 + 278 = 756 (D) · 660 + 294 = 954 (N) · 135 + 283 = 418 (U) · 248 + 421 = 669 (O) · 442 + 298 = 740 (W) · 315 + 226 = 541 (L)
- Clue 2 (Subtraction): "THE SIGNATURE WAS WRITTEN RIGHT HANDED"1093 - 239 = 854 (T) · 898 - 205 = 693 (U) · 964 - 137 = 827 (W) · 437 - 207 = 230 (I) · 344 - 167 = 177 (A) · 504 - 76 = 428 (R) · 729 - 224 = 505 (E) · 1156 - 389 = 767 (G) · 1029 - 355 = 674 (H) · 292 - 68 = 224 (N) · 915 - 277 = 638 (D) · 572 - 355 = 217 (S)
- Clue 3 (Multiplication facts (1-12)): "A BRIGHT FLASHLIGHT SCARED THE VILLAIN"9 × 12 = 108 (A) · 2 × 7 = 14 (V) · 11 × 2 = 22 (S) · 9 × 9 = 81 (C) · 7 × 3 = 21 (E) · 4 × 2 = 8 (F) · 11 × 5 = 55 (G) · 9 × 2 = 18 (I) · 7 × 6 = 42 (D) · 4 × 7 = 28 (L) · 4 × 12 = 48 (T) · 12 × 10 = 120 (N) · 8 × 10 = 80 (H) · 9 × 6 = 54 (R) · 6 × 5 = 30 (B)
- Clue 4 (Rounding): "A CURLY BUZZCUT HAIR WAS FOUND ON THE TROPHY"Round 73 to the nearest ten = 70 (A) · Round 2,838 to the nearest thousand = 3000 (W) · Round 7,250 to the nearest thousand = 7000 (C) · Round 4,944 to the nearest thousand = 5000 (S) · Round 18 to the nearest ten = 20 (E) · Round 2,221 to the nearest thousand = 2000 (F) · Round 37 to the nearest ten = 40 (D) · Round 331 to the nearest hundred = 300 (Y) · Round 584 to the nearest hundred = 600 (Z) · Round 8,934 to the nearest thousand = 9000 (U) · Round 765 to the nearest hundred = 800 (R) · Round 533 to the nearest hundred = 500 (N) · Round 7,768 to the nearest thousand = 8000 (P) · Round 890 to the nearest hundred = 900 (T) · Round 666 to the nearest hundred = 700 (O) · Round 63 to the nearest ten = 60 (I) · Round 76 to the nearest ten = 80 (H) · Round 247 to the nearest hundred = 200 (L) · Round 87 to the nearest ten = 90 (B)
- Clue 5 (Division facts (1-12)): surviving statement (box 9) → Giannis Antetokounmpo22 ÷ 11 = 2 · 64 ÷ 8 = 8 · 77 ÷ 7 = 11 · 36 ÷ 6 = 6 · 35 ÷ 5 = 7 · 11 ÷ 11 = 1 · 33 ÷ 11 = 3 · 40 ÷ 10 = 4 · 120 ÷ 12 = 10 · 72 ÷ 6 = 12 · 45 ÷ 9 = 5
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Addition, Subtraction, Multiplication, Rounding, Division
- Reading level
- grades 3-4
- Theme
- The Case of the Missing Championship Trophy — set in Grand Sports Arena
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects
