⚾ BaseballGrade 8Reading: grades 7-9AdditionMultiplicationRoundingWord problemsDivision
The Diamond City Park Mystery
On the eve of the championship game, someone snuck into the stadium, swapped the golden trophy with a giant rubber baseball, and scattered clues across the field. Detective work is needed to analyze the evidence and unmask the culprit.
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 | Pitching Style | Batting Stance | Throwing Hand | Cap Color | Favorite Snack |
|---|---|---|---|---|---|
| Derek Jeter | Curveball | Wide Stance | Left-handed | Gold Cap | Chewing Gum |
| Ty Cobb | Curveball | Wide Stance | Left-handed | Crimson Cap | Cracker Jacks |
| Hank Aaron | Curveball | Crouched Stance | Left-handed | Navy Cap | Cracker Jacks |
| Mike Trout | Changeup | Square Stance | Right-handed | Crimson Cap | Sunflower Seeds |
| Roberto Clemente | Fastball | Square Stance | Left-handed | Crimson Cap | Chewing Gum |
| Nolan Ryan | Knuckleball | Wide Stance | Right-handed | Crimson Cap | Cracker Jacks |
| Ken Griffey | Fastball | Wide Stance | Right-handed | Navy Cap | Chewing Gum |
| Willie Mays | Sinkerball | Crouched Stance | Left-handed | Navy Cap | Cracker Jacks |
| Mookie Betts | Sinkerball | Crouched Stance | Right-handed | Crimson Cap | Sunflower Seeds |
| Ted Williams | Fastball | Square Stance | Right-handed | Navy Cap | Sunflower Seeds |
| Babe Ruth | Knuckleball | Closed Stance | Left-handed | Gold Cap | Chewing Gum |
| Aaron Judge | Changeup | Open Stance | Left-handed | Crimson Cap | Cracker Jacks |
| Cal Ripken | Knuckleball | Square Stance | Right-handed | Crimson Cap | Sunflower Seeds |
| Sandy Koufax | Knuckleball | Crouched Stance | Right-handed | Crimson Cap | Cracker Jacks |
| Justin Verlander | Changeup | Closed Stance | Right-handed | Crimson Cap | Sunflower Seeds |
| Clayton Kershaw | Changeup | Square Stance | Left-handed | Crimson Cap | Chewing Gum |
| Lou Gehrig | Sinkerball | Crouched Stance | Left-handed | Crimson Cap | Sunflower Seeds |
| Jackie Robinson | Curveball | Crouched Stance | Right-handed | Crimson Cap | Cracker Jacks |
| Shohei Ohtani | Sinkerball | Closed Stance | Right-handed | Navy Cap | Cracker Jacks |
| Cy Young | Curveball | Open Stance | Left-handed | Navy Cap | Chewing Gum |
| Max Scherzer | Changeup | Open Stance | Right-handed | Crimson Cap | Sunflower Seeds |
Clue 1
Addition
To tally the missing equipment from the dugout, add these counts.
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
9433
5175
3215
4428
4707
4428
8346
3215
4972
T
9433
5915
9783
3215
4428
3030
9783
T
9433
4707
4428
3215
3681
4972
3369
9783
4428
3215
5915
4428
T
9433
3681
3030
4972
3215
6281 + 3152 =T
2814 + 2361 =H
2097 + 2875 =C
1157 + 1873 =N
5099 + 4684 =O
5211 + 3135 =P
2004 + 1365 =L
2203 + 1478 =A
2116 + 2312 =S
1088 + 2127 =E
1984 + 2723 =U
3731 + 2184 =D
0/12 letters found
Clue 2
Multiplication facts (1-12)
The groundskeeper arranged stadium seats in equal rows to determine 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.
A
132
80
70
35
1
36
1
A
132
11
3
44
3
9
80
70
11
36
20
A
132
25
2
11
36
1
44
77
A
132
25
44
12 × 11 =A
4 × 5 =W
5 × 5 =S
1 × 3 =D
11 × 7 =B
9 × 4 =T
4 × 11 =E
10 × 8 =R
5 × 7 =G
1 × 1 =H
1 × 2 =O
11 × 1 =N
3 × 3 =P
10 × 7 =I
0/14 letters found
Clue 3
Rounding
The pitch speed radar gun displayed rounded velocity numbers for each ball.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
S
5000
2300
500
20
200
2900
2000
230
3000
S
5000
230
230
1100
S
5000
700
230
200
200
S
5000
7000
2900
370
230
3000
230
1100
1100
2300
3700
2900
2300
30
Round 4,990 to the nearest thousandS
Round 33 to the nearest tenT
Round 2,921 to the nearest hundredO
Round 3,727 to the nearest hundredG
Round 453 to the nearest hundredN
Round 3,151 to the nearest thousandR
Round 678 to the nearest hundredH
Round 2,328 to the nearest hundredU
Round 24 to the nearest tenF
Round 242 to the nearest hundredL
Round 371 to the nearest tenV
Round 7,459 to the nearest thousandC
Round 227 to the nearest tenE
Round 1,588 to the nearest thousandW
Round 1,066 to the nearest hundredD
0/15 letters found
Clue 4
Word problems
Concession stand receipts provided clues about where the suspect ordered snacks.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Astrandof hairturnedupatthescene.
C
36
105
87
80
103
120
41
C
36
A
P
There were 58 helmets. 22 were used up. How many helmets are left?C
Equipment manager found 2 helmets yesterday and 39 more today. How many helmets in all?N
Equipment manager found 75 cleats yesterday and 12 more today. How many cleats in all?I
Equipment manager found 108 bats yesterday and 12 more today. How many bats in all?O
Equipment manager found 86 bats yesterday and 19 more today. How many bats in all?R
Equipment manager found 24 gloves yesterday and 79 more today. How many gloves in all?S
Equipment manager found 77 bats yesterday and 3 more today. How many bats in all?M
0/7 letters found
Clue 5
Division facts (1-12) — the last clue
Dividing the ball collection into practice buckets revealed key evidence numbers.
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
84 ÷ 7 = ?
40 ÷ 4 = ?
28 ÷ 7 = ?
36 ÷ 6 = ?
7 ÷ 7 = ?
99 ÷ 9 = ?
12 ÷ 4 = ?
10 ÷ 5 = ?
18 ÷ 2 = ?
45 ÷ 9 = ?
48 ÷ 6 = ?
Step 2 — cross out the sentence with each answer
1.The villain launched a high fastball, then swung from a wide stance.
2.The villain launched a high fastball, then hit from a crouched stance.
3.The villain threw a sneaky knuckleball, then swung from a wide stance.
4.The villain dropped a slow changeup, then stood in a square stance.
5.The villain fired a heavy sinkerball, then lined up in a closed stance.
6.The villain launched a high fastball, then swung from an open stance.
7.The villain threw a sneaky knuckleball, then stood in a square stance.
8.The villain fired a heavy sinkerball, then swung from an open stance.
9.The villain threw a sharp curveball, then swung from an open stance.
10.The villain fired a heavy sinkerball, then hit from a crouched stance.
11.The villain launched a high fastball, then stood in a square stance.
12.The villain dropped a slow changeup, then swung from an open stance.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Diamond City Park Mystery
Culprit: Cal Ripken (Knuckleball · Square Stance · Right-handed · Crimson Cap · Sunflower Seeds)
- Clue 1 (Addition): "THE SUSPECT DOES NOT USE A CLOSED STANCE"6281 + 3152 = 9433 (T) · 2814 + 2361 = 5175 (H) · 2097 + 2875 = 4972 (C) · 1157 + 1873 = 3030 (N) · 5099 + 4684 = 9783 (O) · 5211 + 3135 = 8346 (P) · 2004 + 1365 = 3369 (L) · 2203 + 1478 = 3681 (A) · 2116 + 2312 = 4428 (S) · 1088 + 2127 = 3215 (E) · 1984 + 2723 = 4707 (U) · 3731 + 2184 = 5915 (D)
- Clue 2 (Multiplication facts (1-12)): "A RIGHT HANDED PRINT WAS ON THE BASE"12 × 11 = 132 (A) · 4 × 5 = 20 (W) · 5 × 5 = 25 (S) · 1 × 3 = 3 (D) · 11 × 7 = 77 (B) · 9 × 4 = 36 (T) · 4 × 11 = 44 (E) · 10 × 8 = 80 (R) · 5 × 7 = 35 (G) · 1 × 1 = 1 (H) · 1 × 2 = 2 (O) · 11 × 1 = 11 (N) · 3 × 3 = 9 (P) · 10 × 7 = 70 (I)
- Clue 3 (Rounding): "SUNFLOWER SEED SHELLS COVERED DUGOUT"Round 4,990 to the nearest thousand = 5000 (S) · Round 33 to the nearest ten = 30 (T) · Round 2,921 to the nearest hundred = 2900 (O) · Round 3,727 to the nearest hundred = 3700 (G) · Round 453 to the nearest hundred = 500 (N) · Round 3,151 to the nearest thousand = 3000 (R) · Round 678 to the nearest hundred = 700 (H) · Round 2,328 to the nearest hundred = 2300 (U) · Round 24 to the nearest ten = 20 (F) · Round 242 to the nearest hundred = 200 (L) · Round 371 to the nearest ten = 370 (V) · Round 7,459 to the nearest thousand = 7000 (C) · Round 227 to the nearest ten = 230 (E) · Round 1,588 to the nearest thousand = 2000 (W) · Round 1,066 to the nearest hundred = 1100 (D)
- Clue 4 (Word problems): "CRIMSON CAP"There were 58 helmets. 22 were used up. How many helmets are left? = 36 (C) · Equipment manager found 2 helmets yesterday and 39 more today. How many helmets in all? = 41 (N) · Equipment manager found 75 cleats yesterday and 12 more today. How many cleats in all? = 87 (I) · Equipment manager found 108 bats yesterday and 12 more today. How many bats in all? = 120 (O) · Equipment manager found 86 bats yesterday and 19 more today. How many bats in all? = 105 (R) · Equipment manager found 24 gloves yesterday and 79 more today. How many gloves in all? = 103 (S) · Equipment manager found 77 bats yesterday and 3 more today. How many bats in all? = 80 (M)
- Clue 5 (Division facts (1-12)): surviving statement (box 7) → Cal Ripken84 ÷ 7 = 12 · 40 ÷ 4 = 10 · 28 ÷ 7 = 4 · 36 ÷ 6 = 6 · 7 ÷ 7 = 1 · 99 ÷ 9 = 11 · 12 ÷ 4 = 3 · 10 ÷ 5 = 2 · 18 ÷ 2 = 9 · 45 ÷ 9 = 5 · 48 ÷ 6 = 8
About this mystery
- Grade level
- Grade 8 math
- Math topics
- Addition, Multiplication, Rounding, Word problems, Division
- Reading level
- grades 7-9
- Theme
- The Diamond City Park Mystery — set in Diamond City Ballpark
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects