⚾ BaseballGrade 8Reading: grades 7-9AdditionMultiplicationRoundingWord problemsDivision
The Mystery of the Grand Diamond Sabotage
Someone stole the Golden Glove Trophy right before the championship game at Grand Diamond Stadium! Stadium security cameras captured a masked intruder using trick pitches and sneaky gear to bypass the outfield gates.
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 | Pitch Style | Gear Tech | Batting Stance | Cap Style | Pitching Flaw |
|---|---|---|---|---|---|
| Ted Williams | slider snap | pine tar grip | right handed stance | pinstripe cap | wet baseball dirt |
| Jackie Robinson | knuckleball glide | pine tar grip | right handed stance | pinstripe cap | loud stadium cheer |
| Freddie Freeman | curveball spin | pine tar grip | left handed stance | stitched red cap | sun glare |
| Mike Trout | curveball spin | shadow slide | left handed stance | pinstripe cap | loud stadium cheer |
| Corey Seager | fastball blast | shadow slide | left handed stance | pinstripe cap | loud stadium cheer |
| Ronald Acuna | fastball blast | shadow slide | left handed stance | stitched red cap | loud stadium cheer |
| Ken Griffey | fastball blast | shadow slide | left handed stance | pinstripe cap | sun glare |
| Clayton Kershaw | changeup trick | shadow slide | left handed stance | pinstripe cap | loud stadium cheer |
| Adley Rutschman | fastball blast | pine tar grip | left handed stance | solid navy cap | wet baseball dirt |
| Gerrit Cole | changeup trick | bat radar | left handed stance | pinstripe cap | loud stadium cheer |
| Max Scherzer | fastball blast | pine tar grip | left handed stance | pinstripe cap | sun glare |
| Derek Jeter | fastball blast | laser throw | right handed stance | pinstripe cap | wet baseball dirt |
| Willie Mays | knuckleball glide | stealth cleat | right handed stance | stitched red cap | loud stadium cheer |
| Bryce Harper | knuckleball glide | stealth cleat | left handed stance | stitched red cap | loud stadium cheer |
| Jose Altuve | changeup trick | laser throw | right handed stance | stitched red cap | loud stadium cheer |
| Hank Aaron | knuckleball glide | shadow slide | right handed stance | pinstripe cap | sun glare |
| Aaron Judge | fastball blast | stealth cleat | right handed stance | pinstripe cap | sun glare |
| Mookie Betts | fastball blast | bat radar | right handed stance | solid navy cap | wet baseball dirt |
| Shohei Ohtani | fastball blast | laser throw | left handed stance | pinstripe cap | sun glare |
| Fernando Tatis | knuckleball glide | stealth cleat | left handed stance | pinstripe cap | loud stadium cheer |
| Justin Verlander | knuckleball glide | pine tar grip | right handed stance | stitched red cap | loud stadium cheer |
Clue 1
Addition
The head groundskeeper tallied up the missing baseball gear found scattered across the dugouts.
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
7319
4865
3901
2765
8359
5589
7990
T
7319
3901
9022
8757
6271
7990
3901
2765
3571
7990
T
7319
9022
2765
3901
8359
5589
8359
T
7319
8757
8359
6271
8359
8757
4148 + 3171 =T
3720 + 1869 =B
4661 + 4361 =U
954 + 1811 =S
2980 + 3291 =D
2656 + 1245 =E
5513 + 3244 =R
5297 + 3062 =A
2419 + 1152 =N
2857 + 2008 =H
2733 + 5257 =O
0/11 letters found
Clue 2
Multiplication facts (1-12)
Detectives calculated total stadium seat sections by multiplying the rows by the seats per row.
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
1
22
18
27
77
49
49
77
49
49
63
W
1
63
8
77
28
18
96
63
27
144
77
144
35
63
18
18
22
27
3
49
18
63
27
64
77
1 × 1 =W
3 × 9 =N
12 × 8 =H
3 × 1 =G
1 × 8 =L
2 × 9 =T
2 × 11 =I
7 × 4 =F
7 × 9 =A
7 × 7 =S
8 × 8 =C
12 × 12 =D
11 × 7 =E
5 × 7 =B
0/14 letters found
Clue 3
Rounding
The electronic scoreboard radar gun rounded the pitch speeds to the nearest whole mile per hour.
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
30
3000
2900
3700
20
9000
300
A
30
20
90
3700
1100
7000
200
110
110
70
370
A
30
1300
110
20
300
200
110
9000
3700
9000
900
110
7000
300
Round 30 to the nearest tenA
Round 2,897 to the nearest hundredO
Round 1,113 to the nearest hundredM
Round 368 to the nearest tenF
Round 309 to the nearest hundredT
Round 69 to the nearest tenR
Round 3,245 to the nearest thousandL
Round 6,571 to the nearest thousandC
Round 1,284 to the nearest hundredZ
Round 3,714 to the nearest hundredU
Round 8,555 to the nearest thousandS
Round 206 to the nearest hundredH
Round 107 to the nearest tenE
Round 94 to the nearest tenI
Round 890 to the nearest hundredP
Round 19 to the nearest tenD
0/16 letters found
Clue 4
Word problems
The lead umpire reviewed the equipment log data to track down where the extra baseballs went.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Astrandof hairturnedupatthescene.
P
95
71
40
118
34
107
71
P
95
109
C
A
P
95
Groundskeeper found 16 aluminum bats yesterday and 79 more today. How many aluminum bats in all?P
There were 126 aluminum bats. 8 were used up. How many aluminum bats are left?S
Groundskeeper found 31 signed baseballs yesterday and 78 more today. How many signed baseballs in all?E
Groundskeeper found 19 signed baseballs yesterday and 15 more today. How many signed baseballs in all?T
Groundskeeper found 51 leather gloves yesterday and 20 more today. How many leather gloves in all?I
Groundskeeper lined up 5 rows of 8 stadium hot dogs. How many stadium hot dogs in all?N
Groundskeeper found 61 stadium hot dogs yesterday and 46 more today. How many stadium hot dogs in all?R
0/7 letters found
Clue 5
Division facts (1-12) — the last clue
The stadium manager divided the leftover game tickets equally among the field maintenance crew.
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
11 ÷ 1 = ?
8 ÷ 8 = ?
108 ÷ 12 = ?
4 ÷ 1 = ?
88 ÷ 11 = ?
42 ÷ 6 = ?
24 ÷ 4 = ?
33 ÷ 11 = ?
132 ÷ 11 = ?
15 ÷ 3 = ?
12 ÷ 6 = ?
Step 2 — cross out the sentence with each answer
1.The villain danced a knuckleball glide, then snuck in stealth cleats.
2.The villain snapped a slider snap, then executed a shadow slide.
3.The villain threw a curveball spin, then applied pine tar grip.
4.The villain tossed a changeup trick, then launched a laser throw.
5.The villain fired a fastball blast, then snuck in stealth cleats.
6.The villain threw a curveball spin, then launched a laser throw.
7.The villain fired a fastball blast, then activated bat radar.
8.The villain snapped a slider snap, then snuck in stealth cleats.
9.The villain tossed a changeup trick, then executed a shadow slide.
10.The villain fired a fastball blast, then executed a shadow slide.
11.The villain threw a curveball spin, then executed a shadow slide.
12.The villain fired a fastball blast, then applied pine tar grip.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Mystery of the Grand Diamond Sabotage
Culprit: Corey Seager (fastball blast · shadow slide · left handed stance · pinstripe cap · loud stadium cheer)
- Clue 1 (Addition): "THE SABOTEUR DOES NOT USE A BAT RADAR"4148 + 3171 = 7319 (T) · 3720 + 1869 = 5589 (B) · 4661 + 4361 = 9022 (U) · 954 + 1811 = 2765 (S) · 2980 + 3291 = 6271 (D) · 2656 + 1245 = 3901 (E) · 5513 + 3244 = 8757 (R) · 5297 + 3062 = 8359 (A) · 2419 + 1152 = 3571 (N) · 2857 + 2008 = 4865 (H) · 2733 + 5257 = 7990 (O)
- Clue 2 (Multiplication facts (1-12)): "WITNESSES SAW A LEFT HANDED BATTING STANCE"1 × 1 = 1 (W) · 3 × 9 = 27 (N) · 12 × 8 = 96 (H) · 3 × 1 = 3 (G) · 1 × 8 = 8 (L) · 2 × 9 = 18 (T) · 2 × 11 = 22 (I) · 7 × 4 = 28 (F) · 7 × 9 = 63 (A) · 7 × 7 = 49 (S) · 8 × 8 = 64 (C) · 12 × 12 = 144 (D) · 11 × 7 = 77 (E) · 5 × 7 = 35 (B)
- Clue 3 (Rounding): "A LOUD STADIUM CHEER FAZED THE SUSPECT"Round 30 to the nearest ten = 30 (A) · Round 2,897 to the nearest hundred = 2900 (O) · Round 1,113 to the nearest hundred = 1100 (M) · Round 368 to the nearest ten = 370 (F) · Round 309 to the nearest hundred = 300 (T) · Round 69 to the nearest ten = 70 (R) · Round 3,245 to the nearest thousand = 3000 (L) · Round 6,571 to the nearest thousand = 7000 (C) · Round 1,284 to the nearest hundred = 1300 (Z) · Round 3,714 to the nearest hundred = 3700 (U) · Round 8,555 to the nearest thousand = 9000 (S) · Round 206 to the nearest hundred = 200 (H) · Round 107 to the nearest ten = 110 (E) · Round 94 to the nearest ten = 90 (I) · Round 890 to the nearest hundred = 900 (P) · Round 19 to the nearest ten = 20 (D)
- Clue 4 (Word problems): "PINSTRIPE CAP"Groundskeeper found 16 aluminum bats yesterday and 79 more today. How many aluminum bats in all? = 95 (P) · There were 126 aluminum bats. 8 were used up. How many aluminum bats are left? = 118 (S) · Groundskeeper found 31 signed baseballs yesterday and 78 more today. How many signed baseballs in all? = 109 (E) · Groundskeeper found 19 signed baseballs yesterday and 15 more today. How many signed baseballs in all? = 34 (T) · Groundskeeper found 51 leather gloves yesterday and 20 more today. How many leather gloves in all? = 71 (I) · Groundskeeper lined up 5 rows of 8 stadium hot dogs. How many stadium hot dogs in all? = 40 (N) · Groundskeeper found 61 stadium hot dogs yesterday and 46 more today. How many stadium hot dogs in all? = 107 (R)
- Clue 5 (Division facts (1-12)): surviving statement (box 10) → Corey Seager11 ÷ 1 = 11 · 8 ÷ 8 = 1 · 108 ÷ 12 = 9 · 4 ÷ 1 = 4 · 88 ÷ 11 = 8 · 42 ÷ 6 = 7 · 24 ÷ 4 = 6 · 33 ÷ 11 = 3 · 132 ÷ 11 = 12 · 15 ÷ 3 = 5 · 12 ÷ 6 = 2
About this mystery
- Grade level
- Grade 8 math
- Math topics
- Addition, Multiplication, Rounding, Word problems, Division
- Reading level
- grades 7-9
- Theme
- The Mystery of the Grand Diamond Sabotage — set in Grand Diamond Stadium
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects