⚾ BaseballGrade 7Reading: grades 7-9AdditionMultiplicationRoundingWord problemsDivision
The Great Diamond Park Sabotage
Just hours before the championship series begins at Diamond Park, someone tampered with the stadium equipment and stole the official game balls. The head groundskeeper needs your detective skills to review stadium logs, decode field clues, and catch the thief before first pitch.
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 | Stolen Gear | Throwing Hand | Cap Color | Batting Flaw |
|---|---|---|---|---|---|
| Sandy Koufax | Curveball | Batting Glove | Left Handed | Navy Cap | Outside Curves |
| Ken Griffey | Fastball | Batting Glove | Left Handed | Gold Cap | High Fastballs |
| Shohei Ohtani | Changeup | Batting Glove | Left Handed | Red Cap | High Fastballs |
| Nolan Ryan | Changeup | Batting Glove | Left Handed | Navy Cap | Outside Curves |
| Babe Ruth | Slider | Rosin Bag | Right Handed | Navy Cap | Outside Curves |
| Hank Aaron | Fastball | Cleat Cleaner | Left Handed | Red Cap | Low Sliders |
| Frank Thomas | Knuckleball | Pine Tar Can | Right Handed | Navy Cap | Low Sliders |
| Cal Ripken | Curveball | Batting Glove | Left Handed | Navy Cap | High Fastballs |
| Derek Jeter | Curveball | Cleat Cleaner | Right Handed | Red Cap | High Fastballs |
| Ichiro Suzuki | Knuckleball | Pine Tar Can | Left Handed | Gold Cap | High Fastballs |
| Greg Maddux | Changeup | Pine Tar Can | Left Handed | Navy Cap | High Fastballs |
| Mookie Betts | Curveball | Pine Tar Can | Right Handed | Gold Cap | High Fastballs |
| Ted Williams | Curveball | Cleat Cleaner | Left Handed | Navy Cap | High Fastballs |
| Pedro Martinez | Knuckleball | Radar Gun | Left Handed | Navy Cap | High Fastballs |
| Ernie Banks | Slider | Rosin Bag | Left Handed | Gold Cap | Outside Curves |
| Lou Gehrig | Changeup | Pine Tar Can | Right Handed | Navy Cap | High Fastballs |
| Stan Musial | Fastball | Rosin Bag | Left Handed | Navy Cap | Low Sliders |
| Roberto Clemente | Changeup | Radar Gun | Right Handed | Navy Cap | High Fastballs |
| Ty Cobb | Slider | Rosin Bag | Right Handed | Navy Cap | High Fastballs |
| Willie Mays | Slider | Pine Tar Can | Right Handed | Gold Cap | Low Sliders |
| Mike Trout | Slider | Pine Tar Can | Left Handed | Navy Cap | High Fastballs |
Clue 1
Addition
To calculate total gear weight left near the dugout, you sum up the equipment items recorded on the referee sheet.
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
4519
6891
6654
9190
4181
4227
4227
2594
4181
4835
3563
4181
3563
4835
6467
T
4519
T
4519
2594
4344
6654
T
4519
6891
6654
4844
4227
6654
2594
T
4519
4844
4227
6654
2594
4835
6654
6473
1606 + 2913 =T
4420 + 4770 =V
2555 + 3912 =O
2294 + 2541 =N
2014 + 2830 =C
1220 + 2343 =D
1167 + 1427 =A
3413 + 3060 =R
3419 + 3472 =H
2896 + 1285 =I
2791 + 1553 =K
2472 + 1755 =L
4589 + 2065 =E
0/13 letters found
Clue 2
Multiplication facts (1-12)
The stadium concessions staff organized seating blocks in equal rows, requiring multiplication to tally total attendees.
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
88
84
60
20
48
90
28
28
28
64
49
20
20
90
99
A
88
9
90
50
20
11
A
88
48
99
90
99
20
11
70
49
84
8 × 11 =A
9 × 10 =E
7 × 7 =O
7 × 10 =R
6 × 10 =I
9 × 1 =L
4 × 5 =T
11 × 1 =H
7 × 12 =W
7 × 4 =S
8 × 8 =P
9 × 11 =D
5 × 10 =F
8 × 6 =N
0/14 letters found
Clue 3
Rounding
The speed display board on the outfield wall only shows pitch velocity rounded to the nearest 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.
T
2000
5000
130
230
3700
230
9000
130
500
T
2000
230
T
2000
370
3700
700
700
900
130
230
300
20
T
2000
5000
5000
20
700
5000
1300
110
230
T
2000
50
110
900
900
230
Round 1,636 to the nearest thousandT
Round 255 to the nearest hundredW
Round 20 to the nearest tenI
Round 3,680 to the nearest hundredU
Round 131 to the nearest tenE
Round 1,334 to the nearest hundredF
Round 536 to the nearest hundredC
Round 695 to the nearest hundredG
Round 913 to the nearest hundredL
Round 5,299 to the nearest thousandH
Round 368 to the nearest tenR
Round 49 to the nearest tenB
Round 232 to the nearest tenS
Round 109 to the nearest tenA
Round 9,451 to the nearest thousandP
0/15 letters found
Clue 4
Word problems
Analyzing the stolen ticket inventory requires solving practical pitch and equipment distribution word problems.
Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.
Astrandofhairturnedupatthescene.
N
61
108
26
103
48
108
10
Batboy found 21 helmets yesterday and 40 more today. How many helmets in all?N
Batboy found 48 base pads yesterday and 55 more today. How many base pads in all?Y
There were 112 cleats. 4 were used up. How many cleats are left?A
Batboy found 29 base pads yesterday and 19 more today. How many base pads in all?C
Batboy lined up 2 rows of 5 helmets. How many helmets in all?P
Batboy found 15 helmets yesterday and 11 more today. How many helmets in all?V
0/6 letters found
Clue 5
Division facts (1-12) — the last clue
To split the recovered baseball boxes equally among outfield ball boys, you divide the total shipments.
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
72 ÷ 8 = ?
32 ÷ 4 = ?
20 ÷ 2 = ?
70 ÷ 10 = ?
54 ÷ 9 = ?
132 ÷ 11 = ?
27 ÷ 9 = ?
15 ÷ 3 = ?
20 ÷ 5 = ?
7 ÷ 7 = ?
2 ÷ 1 = ?
Step 2 — cross out the sentence with each answer
1.The villain threw an unpredictable knuckleball, then took the custom batting glove.
2.The villain launched a ninety mile fastball, then pocketed the chalky rosin bag.
3.The villain snapped a sharp breaking slider, then swiped the team radar gun.
4.The villain snapped a sharp breaking slider, then took the custom batting glove.
5.The villain curved a breaking ball past home plate, then pocketed the chalky rosin bag.
6.The villain fooled the hitter with a changeup, then swiped the team radar gun.
7.The villain launched a ninety mile fastball, then swiped the team radar gun.
8.The villain fooled the hitter with a changeup, then snatched a sticky pine tar can.
9.The villain threw an unpredictable knuckleball, then swiped the team radar gun.
10.The villain snapped a sharp breaking slider, then snatched a sticky pine tar can.
11.The villain curved a breaking ball past home plate, then took the custom batting glove.
12.The villain snapped a sharp breaking slider, then grabbed the electric cleat cleaner.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Diamond Park Sabotage
Culprit: Cal Ripken (Curveball · Batting Glove · Left Handed · Navy Cap · High Fastballs)
- Clue 1 (Addition): "THE VILLAIN DID NOT TAKE THE CLEAT CLEANER"1606 + 2913 = 4519 (T) · 4420 + 4770 = 9190 (V) · 2555 + 3912 = 6467 (O) · 2294 + 2541 = 4835 (N) · 2014 + 2830 = 4844 (C) · 1220 + 2343 = 3563 (D) · 1167 + 1427 = 2594 (A) · 3413 + 3060 = 6473 (R) · 3419 + 3472 = 6891 (H) · 2896 + 1285 = 4181 (I) · 2791 + 1553 = 4344 (K) · 2472 + 1755 = 4227 (L) · 4589 + 2065 = 6654 (E)
- Clue 2 (Multiplication facts (1-12)): "A WITNESS SPOTTED A LEFT HANDED THROW"8 × 11 = 88 (A) · 9 × 10 = 90 (E) · 7 × 7 = 49 (O) · 7 × 10 = 70 (R) · 6 × 10 = 60 (I) · 9 × 1 = 9 (L) · 4 × 5 = 20 (T) · 11 × 1 = 11 (H) · 7 × 12 = 84 (W) · 7 × 4 = 28 (S) · 8 × 8 = 64 (P) · 9 × 11 = 99 (D) · 5 × 10 = 50 (F) · 8 × 6 = 48 (N)
- Clue 3 (Rounding): "THE SUSPECT STRUGGLES WITH HIGH FASTBALLS"Round 1,636 to the nearest thousand = 2000 (T) · Round 255 to the nearest hundred = 300 (W) · Round 20 to the nearest ten = 20 (I) · Round 3,680 to the nearest hundred = 3700 (U) · Round 131 to the nearest ten = 130 (E) · Round 1,334 to the nearest hundred = 1300 (F) · Round 536 to the nearest hundred = 500 (C) · Round 695 to the nearest hundred = 700 (G) · Round 913 to the nearest hundred = 900 (L) · Round 5,299 to the nearest thousand = 5000 (H) · Round 368 to the nearest ten = 370 (R) · Round 49 to the nearest ten = 50 (B) · Round 232 to the nearest ten = 230 (S) · Round 109 to the nearest ten = 110 (A) · Round 9,451 to the nearest thousand = 9000 (P)
- Clue 4 (Word problems): "NAVY CAP"Batboy found 21 helmets yesterday and 40 more today. How many helmets in all? = 61 (N) · Batboy found 48 base pads yesterday and 55 more today. How many base pads in all? = 103 (Y) · There were 112 cleats. 4 were used up. How many cleats are left? = 108 (A) · Batboy found 29 base pads yesterday and 19 more today. How many base pads in all? = 48 (C) · Batboy lined up 2 rows of 5 helmets. How many helmets in all? = 10 (P) · Batboy found 15 helmets yesterday and 11 more today. How many helmets in all? = 26 (V)
- Clue 5 (Division facts (1-12)): surviving statement (box 11) → Cal Ripken72 ÷ 8 = 9 · 32 ÷ 4 = 8 · 20 ÷ 2 = 10 · 70 ÷ 10 = 7 · 54 ÷ 9 = 6 · 132 ÷ 11 = 12 · 27 ÷ 9 = 3 · 15 ÷ 3 = 5 · 20 ÷ 5 = 4 · 7 ÷ 7 = 1 · 2 ÷ 1 = 2
About this mystery
- Grade level
- Grade 7 math
- Math topics
- Addition, Multiplication, Rounding, Word problems, Division
- Reading level
- grades 7-9
- Theme
- The Great Diamond Park Sabotage — set in Diamond Park Stadium
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects