The Championship Cup Mystery
Someone took the shiny Championship Cup from the trophy case! The head referee needs your help to find which superstar player took it before the big game starts.
Possible suspects
Cross off a row as each clue rules it out. On screen, tap a row.
| Name | Signature Move | Special Gear | Shooting Foot | Headband Color | Scared By |
|---|---|---|---|---|---|
| Mo | Header Shot | Warmup Jacket | Left Footed | Red Headband | Bouncing Ball |
| Booker | Three Pointer | Warmup Jacket | Left Footed | Blue Headband | Loud Whistle |
| Kevin | Bicycle Kick | Golden Cleats | Right Footed | Red Headband | Loud Whistle |
| Jimmy | Fast Dribble | Wrist Bands | Right Footed | Blue Headband | Bouncing Ball |
| Tatum | Three Pointer | Wrist Bands | Right Footed | Blue Headband | Bouncing Ball |
| Marta | Header Shot | Warmup Jacket | Right Footed | Red Headband | Squeaky Shoes |
| Kyrie | Fast Dribble | Striped Socks | Left Footed | Green Headband | Squeaky Shoes |
| Luka | Slam Dunk | Striped Socks | Right Footed | Red Headband | Squeaky Shoes |
| Dirk | Slam Dunk | Golden Cleats | Right Footed | Green Headband | Bouncing Ball |
| Chris | Fast Dribble | Striped Socks | Right Footed | Green Headband | Bouncing Ball |
| Marcus | Three Pointer | Warmup Jacket | Right Footed | Blue Headband | Bouncing Ball |
| Christian | Fast Dribble | Wrist Bands | Right Footed | Blue Headband | Squeaky Shoes |
| Harry | Bicycle Kick | Wrist Bands | Right Footed | Red Headband | Squeaky Shoes |
| Cristiano | Header Shot | Shiny High Tops | Right Footed | Red Headband | Loud Whistle |
| Yao | Bicycle Kick | Golden Cleats | Left Footed | Green Headband | Bouncing Ball |
| Megan | Slam Dunk | Golden Cleats | Right Footed | Red Headband | Squeaky Shoes |
| Neymar | Bicycle Kick | Golden Cleats | Left Footed | Red Headband | Squeaky Shoes |
| LeBron | Bicycle Kick | Shiny High Tops | Left Footed | Blue Headband | Bouncing Ball |
| Lionel | Fast Dribble | Shiny High Tops | Right Footed | Blue Headband | Squeaky Shoes |
| Steph | Fast Dribble | Striped Socks | Left Footed | Green Headband | Bouncing Ball |
| Jordan | Fast Dribble | Shiny High Tops | Right Footed | Red Headband | Squeaky Shoes |
Addition
Coach Pete wants to count the bright orange soccer cones on the field. Let us add the groups of cones to find the total.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Place value
The scoreboard is flashing wild numbers. We must look at the tens and ones places to fix the screen and get a hint.
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
Some basketballs rolled away under the bleachers. Let us subtract the missing balls from the full rack to see what is left.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Skip counting
The players are sorting their team socks by twos. Skip count with them to make sure every player has a clean pair.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Missing addends — the last clue
The team needs ten soccer balls for practice, but they only have seven. Find the missing number to fill the cart.
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 Championship Cup Mystery
- Clue 1 (Addition): "THE THIEF DOES NOT WEAR STRIPED SOCKS"8 + 3 = 11 (T) · 3 + 3 = 6 (P) · 9 + 11 = 20 (O) · 11 + 6 = 17 (K) · 12 + 6 = 18 (I) · 11 + 4 = 15 (W) · 1 + 1 = 2 (D) · 1 + 4 = 5 (N) · 2 + 7 = 9 (H) · 3 + 1 = 4 (C) · 10 + 9 = 19 (F) · 5 + 5 = 10 (S) · 1 + 2 = 3 (E) · 9 + 4 = 13 (R) · 5 + 3 = 8 (A)
- Clue 2 (Place value): "THE THIEF KICKS WITH THEIR RIGHT FOOT"What number has 9 tens and 6 ones? = 96 (T) · What number has 7 tens and 9 ones? = 79 (G) · What number has 5 tens and 4 ones? = 54 (K) · What number has 4 tens and 9 ones? = 49 (W) · What number has 8 tens and 8 ones? = 88 (O) · What number has 6 tens and 1 one? = 61 (C) · What number has 6 tens and 8 ones? = 68 (E) · What number has 2 tens and 6 ones? = 26 (S) · What number has 4 tens and 3 ones? = 43 (R) · What number has 6 tens and 3 ones? = 63 (F) · What number has 5 tens and 6 ones? = 56 (I) · What number has 5 tens and 5 ones? = 55 (H)
- Clue 3 (Subtraction): "THEY RAN AWAY FROM SQUEAKY SHOES"13 - 9 = 4 (T) · 17 - 3 = 14 (K) · 19 - 3 = 16 (Y) · 19 - 7 = 12 (N) · 20 - 3 = 17 (H) · 5 - 4 = 1 (M) · 19 - 4 = 15 (A) · 14 - 8 = 6 (U) · 8 - 6 = 2 (E) · 13 - 3 = 10 (W) · 19 - 1 = 18 (R) · 14 - 7 = 7 (F) · 20 - 1 = 19 (S) · 11 - 2 = 9 (Q) · 14 - 9 = 5 (O)
- Clue 4 (Skip counting): "A RED STRAND WAS LEFT ON THE CUP"Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120 = 100 (A) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39 = 33 (L) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140 = 120 (P) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45 = 39 (U) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26 = 22 (R) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32 = 28 (N) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, ___, 55, 60 = 50 (O) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20 = 16 (D) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55 = 45 (W) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35 = 25 (T) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, ___, 20, 22 = 18 (C) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110 = 90 (E) · Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10 = 6 (H) · Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15 = 9 (F) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30 = 26 (S)
- Clue 5 (Missing addends): surviving statement (box 5) → Jordan8 + ___ = 20 = 12 · 4 + ___ = 7 = 3 · 6 + ___ = 16 = 10 · 8 + ___ = 19 = 11 · 10 + ___ = 17 = 7 · 9 + ___ = 15 = 6 · 1 + ___ = 3 = 2 · 10 + ___ = 11 = 1 · 7 + ___ = 11 = 4 · 10 + ___ = 19 = 9 · 2 + ___ = 10 = 8
About this mystery
- Grade level
- Grade 1 math
- Math topics
- Addition, Place value, Subtraction, Skip counting, Missing addends
- Reading level
- grades 1-2
- Theme
- The Championship Cup Mystery — set in The All-Star Sports Arena
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects
