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The Grandstand Sabotage

Someone tampered with the championship game equipment at Diamond City Stadium. The head groundskeeper needs your analytical skills to decode clues, eliminate suspects, and save the pennant race.

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	Lucky Charm	Batting Stance	Cap Style	Pitching Flaw
Ken Griffey	Sweeping Slider	Vintage Catchers Mask	Left Handed Batter	Flat Brim Green Cap	Slow Pop Times
Willie Mays	Sinking Changeup	Vintage Catchers Mask	Right Handed Batter	Fitted Navy Cap	Wild Pickoff Throws
Justin Verlander	Sinking Changeup	Pine Tar Glove	Left Handed Batter	Backward Red Cap	Slow Pop Times
Aaron Judge	100mph Heat	Autographed Wristband	Left Handed Batter	Backward Red Cap	Slow Pop Times
Roberto Clemente	Sinking Changeup	Custom Cleats	Left Handed Batter	Backward Red Cap	Tipping Curveballs
Mickey Vance	Sinking Changeup	Autographed Wristband	Left Handed Batter	Flat Brim Green Cap	Slow Pop Times
Jackie Cobb	100mph Heat	Autographed Wristband	Right Handed Batter	Fitted Navy Cap	Tipping Curveballs
Bryce Harper	100mph Heat	Autographed Wristband	Right Handed Batter	Fitted Navy Cap	Slow Pop Times
Mike Trout	Sinking Changeup	Gold Bat Chain	Left Handed Batter	Fitted Navy Cap	Slow Pop Times
Clayton Kershaw	100mph Heat	Gold Bat Chain	Right Handed Batter	Flat Brim Green Cap	Slow Pop Times
Shohei Ohtani	Knuckleball	Pine Tar Glove	Left Handed Batter	Fitted Navy Cap	Slow Pop Times
Hank Gibson	Sinking Changeup	Gold Bat Chain	Left Handed Batter	Fitted Navy Cap	Tipping Curveballs
Ted Williams	Sweeping Slider	Vintage Catchers Mask	Right Handed Batter	Backward Red Cap	Tipping Curveballs
Nolan Ryan	Sweeping Slider	Pine Tar Glove	Left Handed Batter	Backward Red Cap	Wild Pickoff Throws
Sandy Koufax	Knuckleball	Custom Cleats	Left Handed Batter	Fitted Navy Cap	Slow Pop Times
Mookie Betts	Knuckleball	Pine Tar Glove	Right Handed Batter	Flat Brim Green Cap	Slow Pop Times
Ernie Banks	100mph Heat	Gold Bat Chain	Left Handed Batter	Backward Red Cap	Tipping Curveballs
Freddie Freeman	100mph Heat	Vintage Catchers Mask	Left Handed Batter	Flat Brim Green Cap	Slow Pop Times
Pedro Martinez	100mph Heat	Vintage Catchers Mask	Left Handed Batter	Fitted Navy Cap	Slow Pop Times
Ozzie Smith	Sweeping Slider	Gold Bat Chain	Right Handed Batter	Fitted Navy Cap	Slow Pop Times
Cal Rivera	Sinking Changeup	Vintage Catchers Mask	Left Handed Batter	Fitted Navy Cap	Slow Pop Times

Clue 1

Addition

The groundskeeper added up the stolen baseballs in the storage room to reveal the first letter code.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

8153

7628

3174

6369

2258

3369

4061

8153

3174

9615

2198

4810

7975

4810

4955

4061

8153

9615

6369

3174

5596

9615

6369

8153

4061

4988

5596

4204

3174

2258

8153

6369

4670 + 3483 =T

1733 + 1636 =B

1424 + 834 =A

3476 + 4499 =I

1398 + 1776 =E

3883 + 3745 =H

2189 + 2015 =L

1776 + 3212 =M

1234 + 964 =R

6148 + 3467 =U

4119 + 2250 =S

2307 + 1754 =O

2948 + 1862 =D

2251 + 2704 =N

1937 + 3659 =C

0/15 letters found

Clue 2

Multiplication facts (1-12)

By calculating the total stadium seats arranged in equal rows, you reveal the next code.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

144

120

12 × 8 =W

5 × 12 =R

9 × 9 =T

6 × 5 =U

11 × 8 =I

4 × 11 =N

9 × 3 =S

8 × 8 =A

4 × 4 =E

1 × 9 =G

10 × 12 =H

12 × 12 =F

6 × 2 =L

10 × 5 =B

1 × 1 =D

7 × 10 =O

0/16 letters found

Clue 3

Rounding

The radar gun display rounds pitch speeds to the nearest ten to generate a digital clue.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

1100

370

170

230

1100

2000

370

230

700

3000

1300

1100

2900

370

110

370

110

230

700

3000

1100

370

2000

200

700

3000

2900

1300

230

370

Round 1,103 to the nearest hundredS

Round 657 to the nearest hundredI

Round 174 to the nearest tenU

Round 374 to the nearest tenO

Round 2,869 to the nearest hundredL

Round 193 to the nearest hundredF

Round 232 to the nearest tenT

Round 89 to the nearest tenC

Round 1,343 to the nearest hundredD

Round 2,213 to the nearest thousandN

Round 46 to the nearest tenW

Round 2,895 to the nearest thousandE

Round 74 to the nearest tenM

Round 107 to the nearest tenP

0/14 letters found

Clue 4

Place value

Analyzing the numbers on the scoreboard reveals a secret code hidden in the tens place.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

7000

800

3000

7000

200

7000

5000

900

700

400

3000

600

700

5000

7000

3000

600

900

500

200

600

4000

5000

200

600

2000

What is the value of the 7 in 27,923?T

What is the value of the 9 in 62,956?V

What is the value of the 2 in 33,264?C

What is the value of the 3 in 23,557?D

What is the value of the 2 in 312,705?G

What is the value of the 3 in 19,537?U

What is the value of the 4 in 94,303?P

What is the value of the 4 in 99,492?O

What is the value of the 6 in 477,672?A

What is the value of the 7 in 81,870?N

What is the value of the 7 in 42,756?F

What is the value of the 8 in 69,834?H

What is the value of the 6 in 31,260?E

What is the value of the 5 in 49,578?Y

What is the value of the 5 in 765,779?I

0/15 letters found

Clue 5

Division facts (1-12) — the last clue

Dividing the remaining bucket of practice balls equally among bullpen pitchers decodes the final location.

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

45 ÷ 9 = ?

72 ÷ 8 = ?

2 ÷ 1 = ?

24 ÷ 4 = ?

132 ÷ 12 = ?

21 ÷ 3 = ?

12 ÷ 4 = ?

32 ÷ 4 = ?

16 ÷ 4 = ?

10 ÷ 10 = ?

36 ÷ 3 = ?

Step 2 — cross out the sentence with each answer

1.The villain blazed a hundred mile heat pitch, then laced up custom cleats.

2.The villain blazed a hundred mile heat pitch, then strapped on a vintage catchers mask.

3.The villain snapped off a sweeping slider, then strapped on a vintage catchers mask.

4.The villain delivered a submarine fastball, then strapped on a vintage catchers mask.

5.The villain dropped in a sinking changeup, then strapped on a vintage catchers mask.

6.The villain threw a wild knuckleball, then laced up custom cleats.

7.The villain delivered a submarine fastball, then laced up custom cleats.

8.The villain dropped in a sinking changeup, then laced up custom cleats.

9.The villain dropped in a sinking changeup, then flashed a gold bat chain.

10.The villain threw a wild knuckleball, then adjusted a pine tar glove.

11.The villain dropped in a sinking changeup, then tightened an autographed wristband.

12.The villain threw a wild knuckleball, then tightened an autographed wristband.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Grandstand Sabotage

Culprit: Shohei Ohtani (Knuckleball · Pine Tar Glove · Left Handed Batter · Fitted Navy Cap · Slow Pop Times)

Clue 1 (Addition): "THE SABOTEUR DID NOT USE CUSTOM CLEATS"
4670 + 3483 = 8153 (T) · 1733 + 1636 = 3369 (B) · 1424 + 834 = 2258 (A) · 3476 + 4499 = 7975 (I) · 1398 + 1776 = 3174 (E) · 3883 + 3745 = 7628 (H) · 2189 + 2015 = 4204 (L) · 1776 + 3212 = 4988 (M) · 1234 + 964 = 2198 (R) · 6148 + 3467 = 9615 (U) · 4119 + 2250 = 6369 (S) · 2307 + 1754 = 4061 (O) · 2948 + 1862 = 4810 (D) · 2251 + 2704 = 4955 (N) · 1937 + 3659 = 5596 (C)
Clue 2 (Multiplication facts (1-12)): "WITNESS SAW A LEFT HANDED BATTER NEAR THE DUGOUT"
12 × 8 = 96 (W) · 5 × 12 = 60 (R) · 9 × 9 = 81 (T) · 6 × 5 = 30 (U) · 11 × 8 = 88 (I) · 4 × 11 = 44 (N) · 9 × 3 = 27 (S) · 8 × 8 = 64 (A) · 4 × 4 = 16 (E) · 1 × 9 = 9 (G) · 10 × 12 = 120 (H) · 12 × 12 = 144 (F) · 6 × 2 = 12 (L) · 10 × 5 = 50 (B) · 1 × 1 = 1 (D) · 7 × 10 = 70 (O)
Clue 3 (Rounding): "SCOUTS NOTICED SLOW POP TIMES ON FIELD TWO"
Round 1,103 to the nearest hundred = 1100 (S) · Round 657 to the nearest hundred = 700 (I) · Round 174 to the nearest ten = 170 (U) · Round 374 to the nearest ten = 370 (O) · Round 2,869 to the nearest hundred = 2900 (L) · Round 193 to the nearest hundred = 200 (F) · Round 232 to the nearest ten = 230 (T) · Round 89 to the nearest ten = 90 (C) · Round 1,343 to the nearest hundred = 1300 (D) · Round 2,213 to the nearest thousand = 2000 (N) · Round 46 to the nearest ten = 50 (W) · Round 2,895 to the nearest thousand = 3000 (E) · Round 74 to the nearest ten = 70 (M) · Round 107 to the nearest ten = 110 (P)
Clue 4 (Place value): "THE DETECTIVE FOUND A FITTED NAVY CAP IN CAGE"
What is the value of the 7 in 27,923? = 7000 (T) · What is the value of the 9 in 62,956? = 900 (V) · What is the value of the 2 in 33,264? = 200 (C) · What is the value of the 3 in 23,557? = 3000 (D) · What is the value of the 2 in 312,705? = 2000 (G) · What is the value of the 3 in 19,537? = 30 (U) · What is the value of the 4 in 94,303? = 4000 (P) · What is the value of the 4 in 99,492? = 400 (O) · What is the value of the 6 in 477,672? = 600 (A) · What is the value of the 7 in 81,870? = 70 (N) · What is the value of the 7 in 42,756? = 700 (F) · What is the value of the 8 in 69,834? = 800 (H) · What is the value of the 6 in 31,260? = 60 (E) · What is the value of the 5 in 49,578? = 500 (Y) · What is the value of the 5 in 765,779? = 5000 (I)
Clue 5 (Division facts (1-12)): surviving statement (box 10) → Shohei Ohtani
45 ÷ 9 = 5 · 72 ÷ 8 = 9 · 2 ÷ 1 = 2 · 24 ÷ 4 = 6 · 132 ÷ 12 = 11 · 21 ÷ 3 = 7 · 12 ÷ 4 = 3 · 32 ÷ 4 = 8 · 16 ÷ 4 = 4 · 10 ÷ 10 = 1 · 36 ÷ 3 = 12

About this mystery

Grade level: Grade 10 math
Math topics: Addition, Multiplication, Rounding, Place value, Division
Reading level: grades 7-9
Theme: The Grandstand Sabotage — set in Diamond City Stadium
Format: Interactive online & printable worksheet with answer key
Solution: One unique, verified culprit among 21 suspects

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