⚾ BaseballGrade 8Reading: grades 7-9AdditionMultiplicationRoundingWord problemsDivision
The Case of the Missing Diamond Trophy
Just before game seven of the championship series, the trophy vanished from its display case at Diamond Park Stadium. The culprit left behind a trail of baseball equipment and subtle clues across the diamond.
Suspects
Possible suspects
Cross off a row as each clue rules it out. On screen, tap a row.
21 of 21 still in play
| Name | Signature Pitch | Lucky Gear | Dominant Hand | Cap Style Hair | Dugout Snack |
|---|---|---|---|---|---|
| Adley Rutschman | Sweeping Slider | Gold Cleats | Right Handed Thrower | Curly Afro Hair | Salty Peanuts |
| Elly De La Cruz | Wild Knuckleball | Gold Cleats | Left Handed Thrower | Long Flowing Locks | Salty Peanuts |
| Yordan Alvarez | Sweeping Slider | Custom Mitt | Left Handed Thrower | Long Flowing Locks | Salty Peanuts |
| Mike Trout | Wild Knuckleball | Pine Tar Bat | Left Handed Thrower | Long Flowing Locks | Bubble Gum |
| Corey Seager | Nasty Curveball | Emerald Bat Tape | Left Handed Thrower | Curly Afro Hair | Salty Peanuts |
| Julio Rodriguez | Nasty Curveball | Gold Cleats | Left Handed Thrower | Curly Afro Hair | Bubble Gum |
| Freddie Freeman | Wild Knuckleball | Gold Cleats | Left Handed Thrower | Buzz Cut Hair | Bubble Gum |
| Juan Soto | Rising Fastball | Custom Mitt | Left Handed Thrower | Curly Afro Hair | Bubble Gum |
| Vladimir Guerrero | Rising Fastball | Emerald Bat Tape | Left Handed Thrower | Buzz Cut Hair | Salty Peanuts |
| Rafael Devers | Wild Knuckleball | Emerald Bat Tape | Right Handed Thrower | Long Flowing Locks | Sunflower Seeds |
| Trea Turner | Rising Fastball | Signed Helmet | Left Handed Thrower | Curly Afro Hair | Bubble Gum |
| Mookie Betts | Wild Knuckleball | Custom Mitt | Right Handed Thrower | Curly Afro Hair | Bubble Gum |
| Gunnar Henderson | Sweeping Slider | Emerald Bat Tape | Left Handed Thrower | Long Flowing Locks | Bubble Gum |
| Gerrit Cole | Sweeping Slider | Pine Tar Bat | Left Handed Thrower | Curly Afro Hair | Bubble Gum |
| Bryce Harper | Rising Fastball | Pine Tar Bat | Right Handed Thrower | Long Flowing Locks | Bubble Gum |
| Bo Bichette | Wild Knuckleball | Emerald Bat Tape | Right Handed Thrower | Curly Afro Hair | Bubble Gum |
| Ronald Acuna | Sweeping Slider | Emerald Bat Tape | Left Handed Thrower | Curly Afro Hair | Bubble Gum |
| Fernando Tatis | Wild Knuckleball | Gold Cleats | Right Handed Thrower | Long Flowing Locks | Sunflower Seeds |
| Corbin Carroll | Circle Changeup | Pine Tar Bat | Right Handed Thrower | Buzz Cut Hair | Sunflower Seeds |
| Aaron Judge | Wild Knuckleball | Custom Mitt | Left Handed Thrower | Curly Afro Hair | Sunflower Seeds |
| Shohei Ohtani | Wild Knuckleball | Gold Cleats | Left Handed Thrower | Curly Afro Hair | Sunflower Seeds |
Clue 1
Addition
The head umpire tallied all the baseballs retrieved from the dugout after the game.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
T
9721
3215
4499
7835
5932
7835
6465
4499
6441
T
9721
3182
7128
4499
7835
5118
7128
T
9721
5932
7835
4499
7986
7128
6744
3182
6441
6744
4499
3605
T
9721
7835
3569 + 6152 =T
2715 + 4029 =L
2176 + 2323 =E
3632 + 2300 =U
1083 + 2132 =H
1109 + 2073 =D
2710 + 2408 =N
4259 + 3576 =S
1156 + 2449 =A
5519 + 2467 =G
3732 + 3396 =O
3749 + 2692 =C
2129 + 4336 =P
0/13 letters found
Clue 2
Multiplication facts (1-12)
The stadium manager organized the stadium seats into equal rows to estimate crowd capacity.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
W
84
54
99
44
110
24
24
24
16
W
84
16
9
110
64
99
18
16
44
144
110
144
99
18
66
48
W
84
110
66
9
110
16
25
110
12 × 7 =W
9 × 1 =L
8 × 8 =F
11 × 6 =R
2 × 9 =H
11 × 10 =E
11 × 9 =T
12 × 12 =D
11 × 4 =N
6 × 9 =I
5 × 5 =V
6 × 8 =O
4 × 4 =A
8 × 3 =S
0/14 letters found
Clue 3
Rounding
The digital speed radar on the outfield scoreboard displayed velocity rounded to the nearest ten.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
F
170
1700
290
70
110
370
230
2300
500
2300
110
1300
290
1300
1300
200
2300
3700
290
5000
90
30
230
1700
5000
2300
1100
200
90
30
2300
Round 172 to the nearest tenF
Round 222 to the nearest hundredL
Round 233 to the nearest tenH
Round 374 to the nearest tenC
Round 289 to the nearest tenU
Round 2,286 to the nearest hundredE
Round 1,317 to the nearest hundredB
Round 112 to the nearest tenD
Round 5,238 to the nearest thousandM
Round 1,051 to the nearest hundredP
Round 491 to the nearest hundredW
Round 33 to the nearest tenT
Round 1,684 to the nearest hundredO
Round 3,742 to the nearest hundredG
Round 68 to the nearest tenN
Round 92 to the nearest tenA
0/16 letters found
Clue 4
Word problems
The team equipment manager cataloged gear bags and athletic bats before the road trip.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Astrandof hairturnedupatthescene.
C
119
15
31
72
85
60
35
31
O
H
60
I
31
There were 125 tickets. 6 were used up. How many tickets are left?C
Head Scout found 26 helmets yesterday and 9 more today. How many helmets in all?F
Head Scout found 2 helmets yesterday and 13 more today. How many helmets in all?U
Head Scout found 23 championship rings yesterday and 8 more today. How many championship rings in all?R
There were 82 bats. 10 were used up. How many bats are left?L
Head Scout lined up 12 rows of 5 championship rings. How many championship rings in all?A
There were 93 tickets. 8 were used up. How many tickets are left?Y
0/7 letters found
Clue 5
Division facts (1-12) — the last clue
The grounds crew divided the practice baseballs evenly among the bullpen containers.
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!
Step 1 — solve these
30 ÷ 5 = ?
77 ÷ 11 = ?
35 ÷ 7 = ?
6 ÷ 6 = ?
6 ÷ 2 = ?
12 ÷ 1 = ?
70 ÷ 7 = ?
22 ÷ 2 = ?
36 ÷ 9 = ?
18 ÷ 2 = ?
88 ÷ 11 = ?
Step 2 — cross out the sentence with each answer
1.The villain floated a circle changeup, then laced up the gold cleats.
2.The villain threw a rising fastball, then polished the signed helmet.
3.The villain dropped a nasty curveball, then laced up the gold cleats.
4.The villain dropped a nasty curveball, then grabbed the pine tar bat.
5.The villain snapped a sweeping slider, then grabbed the pine tar bat.
6.The villain snapped a sweeping slider, then wrapped the emerald bat tape.
7.The villain threw a rising fastball, then adjusted the custom mitt.
8.The villain snapped a sweeping slider, then adjusted the custom mitt.
9.The villain floated a circle changeup, then adjusted the custom mitt.
10.The villain knuckled a wild fastball, then grabbed the pine tar bat.
11.The villain floated a circle changeup, then polished the signed helmet.
12.The villain floated a circle changeup, then grabbed the pine tar bat.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Missing Diamond Trophy
Culprit: Trea Turner (Rising Fastball · Signed Helmet · Left Handed Thrower · Curly Afro Hair · Bubble Gum)
- Clue 1 (Addition): "THE SUSPECT DOES NOT USE GOLD CLEATS"3569 + 6152 = 9721 (T) · 2715 + 4029 = 6744 (L) · 2176 + 2323 = 4499 (E) · 3632 + 2300 = 5932 (U) · 1083 + 2132 = 3215 (H) · 1109 + 2073 = 3182 (D) · 2710 + 2408 = 5118 (N) · 4259 + 3576 = 7835 (S) · 1156 + 2449 = 3605 (A) · 5519 + 2467 = 7986 (G) · 3732 + 3396 = 7128 (O) · 3749 + 2692 = 6441 (C) · 2129 + 4336 = 6465 (P)
- Clue 2 (Multiplication facts (1-12)): "WITNESS SAW A LEFT HANDED THROWER LEAVE"12 × 7 = 84 (W) · 9 × 1 = 9 (L) · 8 × 8 = 64 (F) · 11 × 6 = 66 (R) · 2 × 9 = 18 (H) · 11 × 10 = 110 (E) · 11 × 9 = 99 (T) · 12 × 12 = 144 (D) · 11 × 4 = 44 (N) · 6 × 9 = 54 (I) · 5 × 5 = 25 (V) · 6 × 8 = 48 (O) · 4 × 4 = 16 (A) · 8 × 3 = 24 (S)
- Clue 3 (Rounding): "FOUND CHEWED BUBBLE GUM AT HOME PLATE"Round 172 to the nearest ten = 170 (F) · Round 222 to the nearest hundred = 200 (L) · Round 233 to the nearest ten = 230 (H) · Round 374 to the nearest ten = 370 (C) · Round 289 to the nearest ten = 290 (U) · Round 2,286 to the nearest hundred = 2300 (E) · Round 1,317 to the nearest hundred = 1300 (B) · Round 112 to the nearest ten = 110 (D) · Round 5,238 to the nearest thousand = 5000 (M) · Round 1,051 to the nearest hundred = 1100 (P) · Round 491 to the nearest hundred = 500 (W) · Round 33 to the nearest ten = 30 (T) · Round 1,684 to the nearest hundred = 1700 (O) · Round 3,742 to the nearest hundred = 3700 (G) · Round 68 to the nearest ten = 70 (N) · Round 92 to the nearest ten = 90 (A)
- Clue 4 (Word problems): "CURLY AFRO HAIR"There were 125 tickets. 6 were used up. How many tickets are left? = 119 (C) · Head Scout found 26 helmets yesterday and 9 more today. How many helmets in all? = 35 (F) · Head Scout found 2 helmets yesterday and 13 more today. How many helmets in all? = 15 (U) · Head Scout found 23 championship rings yesterday and 8 more today. How many championship rings in all? = 31 (R) · There were 82 bats. 10 were used up. How many bats are left? = 72 (L) · Head Scout lined up 12 rows of 5 championship rings. How many championship rings in all? = 60 (A) · There were 93 tickets. 8 were used up. How many tickets are left? = 85 (Y)
- Clue 5 (Division facts (1-12)): surviving statement (box 2) → Trea Turner30 ÷ 5 = 6 · 77 ÷ 11 = 7 · 35 ÷ 7 = 5 · 6 ÷ 6 = 1 · 6 ÷ 2 = 3 · 12 ÷ 1 = 12 · 70 ÷ 7 = 10 · 22 ÷ 2 = 11 · 36 ÷ 9 = 4 · 18 ÷ 2 = 9 · 88 ÷ 11 = 8
About this mystery
- Grade level
- Grade 8 math
- Math topics
- Addition, Multiplication, Rounding, Word problems, Division
- Reading level
- grades 7-9
- Theme
- The Case of the Missing Diamond Trophy — set in Diamond Park Stadium
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects