Math Crackers
⚾ BaseballGrade 7Reading: grades 7-9AdditionMultiplicationRoundingWord problemsDivision

The Mystery of the Missing World Series Ring

During the championship pennant celebration at Grand Slam Diamond Stadium, someone snuck into the trophy room and snatched the golden championship ring! The stadium detective needs your math skills to eliminate suspects and catch the rogue player before the team bus leaves.

Suspects

Possible suspects

Cross off a row as each clue rules it out. On screen, tap a row.

21 of 21 still in play
NamePitch StyleSpecial GearThrowing HandCap ColorBatting Weakness
Ronald AcunaSlider ExpertStealth CleatsLeft HandedBlack Baseball CapHigh Fastballs
Juan SotoSlider ExpertLaser Scope HelmLeft HandedRed Baseball CapLow Changeups
Babe RuthChangeup TacticianStealth CleatsLeft HandedBlue Baseball CapHigh Fastballs
Adley RutschmanFastball SpecialistHeavy Doughnut BatRight HandedRed Baseball CapLow Changeups
Derek JeterSlider ExpertPine Tar GloveLeft HandedRed Baseball CapInside Sinkers
Willie MaysChangeup TacticianRadar JammerRight HandedBlue Baseball CapInside Sinkers
Bryce HarperFastball SpecialistPine Tar GloveLeft HandedBlack Baseball CapHigh Fastballs
Lou GehrigSlider ExpertHeavy Doughnut BatLeft HandedBlack Baseball CapInside Sinkers
Mike TroutFastball SpecialistStealth CleatsLeft HandedBlue Baseball CapLow Changeups
Hank AaronChangeup TacticianHeavy Doughnut BatLeft HandedBlue Baseball CapLow Changeups
Justin VerlanderCurveball MasterLaser Scope HelmLeft HandedBlue Baseball CapLow Changeups
Roberto ClementeChangeup TacticianLaser Scope HelmRight HandedBlue Baseball CapLow Changeups
Mookie BettsFastball SpecialistStealth CleatsRight HandedBlack Baseball CapHigh Fastballs
Cal RipkenKnuckleball ThrowerHeavy Doughnut BatLeft HandedBlack Baseball CapLow Changeups
Clayton KershawKnuckleball ThrowerHeavy Doughnut BatRight HandedRed Baseball CapHigh Fastballs
Ted WilliamsSlider ExpertRadar JammerLeft HandedBlue Baseball CapLow Changeups
Shohei OhtaniKnuckleball ThrowerPine Tar GloveRight HandedBlue Baseball CapLow Changeups
Ken GriffeyFastball SpecialistStealth CleatsLeft HandedBlue Baseball CapInside Sinkers
Freddie FreemanSlider ExpertHeavy Doughnut BatLeft HandedBlue Baseball CapInside Sinkers
Jackie RobinsonKnuckleball ThrowerPine Tar GloveLeft HandedBlue Baseball CapLow Changeups
Max ScherzerCurveball MasterHeavy Doughnut BatLeft HandedBlack Baseball CapLow Changeups
Clue 1

Addition

The head groundskeeper totaled up the misplaced practice baseballs found near the home dugout.

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
2145
7489
8905
3050
5356
3050
4960
8905
8690
T
2145
2255
6010
8905
3050
6845
6010
T
2145
5356
3050
8905
9154
9324
9154
2255
9154
9324
3827
9154
2681
2681
8905
9324
1234 + 911 =T
2875 + 2481 =U
3519 + 3326 =N
1367 + 2460 =J
1499 + 3461 =P
2426 + 3584 =O
2986 + 6338 =R
3452 + 5453 =E
3547 + 5143 =C
4179 + 4975 =A
2876 + 4613 =H
1634 + 1047 =M
1775 + 1275 =S
970 + 1285 =D
0/14 letters found
Clue 2

Multiplication facts (1-12)

The stadium security team checked the grid of batting cages, multiplying rows by lockers to track movement.

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
45
88
11
16
2
35
35
35
33
W
45
33
22
2
96
11
70
33
16
108
2
108
11
70
5
9
W
45
33
11
11
70
2
6
22
33
11
2
9 × 5 =W
2 × 1 =E
5 × 7 =S
3 × 2 =P
2 × 8 =N
11 × 1 =T
3 × 11 =A
12 × 8 =F
7 × 10 =H
12 × 9 =D
5 × 1 =R
9 × 1 =O
11 × 2 =L
11 × 8 =I
0/14 letters found
Clue 3

Rounding

The speed radar gun on the outfield wall rounds every pitch speed to the nearest five miles 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.

T
3000
2300
2900
1700
500
1700
30
2900
9000
T
3000
300
500
9000
430
2900
300
2000
5000
2000
290
230
130
3700
170
1100
3700
5000
9000
2300
2000
70
370
2900
500
30
1700
Round 3,065 to the nearest thousandT
Round 307 to the nearest hundredD
Round 294 to the nearest tenY
Round 28 to the nearest tenP
Round 66 to the nearest tenN
Round 130 to the nearest tenR
Round 431 to the nearest tenK
Round 370 to the nearest tenG
Round 2,874 to the nearest hundredE
Round 4,680 to the nearest thousandW
Round 1,655 to the nearest hundredS
Round 1,945 to the nearest thousandA
Round 459 to the nearest hundredU
Round 169 to the nearest tenM
Round 8,962 to the nearest thousandC
Round 2,341 to the nearest hundredH
Round 1,115 to the nearest hundredL
Round 226 to the nearest tenF
Round 3,663 to the nearest hundredO
0/19 letters found
Clue 4

Word problems

The equipment manager needs your help organizing team gear counts before night practice begins.

Solve each problem to learn its letter, then write the letters in the boxes to fill in the missing word.

Astrandof
B
28
40
62
48
B
28
53
107
48
B
28
53
40
40
47
53
P
 
hairturnedupatthescene.
Equipment manager found 9 leather gloves yesterday and 19 more today. How many leather gloves in all?B
Equipment manager found 18 leather gloves yesterday and 35 more today. How many leather gloves in all?A
Equipment manager found 32 cleats yesterday and 75 more today. How many cleats in all?S
Equipment manager lined up 4 rows of 10 leather gloves. How many leather gloves in all?L
Equipment manager lined up 12 rows of 4 batting helmets. How many batting helmets in all?E
There were 100 baseballs. 38 were used up. How many baseballs are left?U
Equipment manager found 11 cleats yesterday and 36 more today. How many cleats in all?C
0/7 letters found
Clue 5

Division facts (1-12) — the last clue

The league official evenly divided the recovered game balls among the local youth dugouts.

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
10 ÷ 5 = ?
8 ÷ 1 = ?
56 ÷ 8 = ?
24 ÷ 2 = ?
36 ÷ 12 = ?
40 ÷ 8 = ?
4 ÷ 4 = ?
33 ÷ 3 = ?
30 ÷ 5 = ?
4 ÷ 1 = ?
10 ÷ 1 = ?
Step 2 — cross out the sentence with each answer
1.The villain threw a fast pitch, then turned on radar jammer.
2.The villain dropped a slow changeup, then swung the heavy bat.
3.The villain spun a sharp curve, then laced stealth cleats.
4.The villain threw a fast pitch, then applied pine tar.
5.The villain dropped a slow changeup, then applied pine tar.
6.The villain floated a weird knuckleball, then turned on radar jammer.
7.The villain floated a weird knuckleball, then applied pine tar.
8.The villain spun a sharp curve, then adjusted laser helm.
9.The villain threw a fast pitch, then laced stealth cleats.
10.The villain slid a tricky cutter, then turned on radar jammer.
11.The villain threw a fast pitch, then adjusted laser helm.
12.The villain slid a tricky cutter, then adjusted laser helm.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 7 math
Math topics
Addition, Multiplication, Rounding, Word problems, Division
Reading level
grades 7-9
Theme
The Mystery of the Missing World Series Ring — set in Grand Slam Diamond Stadium
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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