Math Crackers
🦕 Dinosaurs, Mermaids, SoccerGrade 8Reading: grades 3-4ExponentsSquare rootsPythagorean theoremOrder of operationsTwo-step equations

The Great Jurassic Lagoon Soccer Cup Mystery

The championship game of the Jurassic Lagoon Soccer League was about to begin when the golden trophy ball vanished! A mysterious swimmer zoomed onto the field, kicked a secret power shot, and hid the trophy ball. Use your math clues to figure out who took the ball!

Suspects

Possible suspects

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

21 of 21 still in play
NameSoccer SkillDino Mascot CompanionKicking FootTail Fin ColorFavorite Snack
Kylian ShellbackTidal TackleTRex PetRight FootedCoral Pink FinSeaweed Chips
Pernille HarderWhirlpool DribbleTRex PetRight FootedCoral Pink FinSeaweed Chips
Wendie RenardMega PassVelociraptor PetRight FootedSapphire Blue FinPlankton Patties
Pele PlesioWhirlpool DribbleStegosaurus PetLeft FootedCoral Pink FinPlankton Patties
Luka ModricBicycle KickAnkylosaurus PetRight FootedSapphire Blue FinSeaweed Chips
Erling HaalandBicycle KickVelociraptor PetRight FootedSapphire Blue FinKelpie Crunchies
Marta FinBicycle KickAnkylosaurus PetRight FootedCoral Pink FinSeaweed Chips
Aitana BonmatiTidal TackleVelociraptor PetLeft FootedEmerald Green FinPlankton Patties
Antoine GriezmannTail HeaderVelociraptor PetRight FootedSapphire Blue FinKelpie Crunchies
Lionel TideWhirlpool DribbleTRex PetRight FootedSapphire Blue FinPlankton Patties
Lucy BronzeBicycle KickVelociraptor PetLeft FootedCoral Pink FinSeaweed Chips
Rose LavelleWhirlpool DribbleAnkylosaurus PetRight FootedSapphire Blue FinPlankton Patties
Mohamed SplashWhirlpool DribbleTriceratops PetRight FootedSapphire Blue FinPlankton Patties
Son Heung MinTail HeaderTriceratops PetRight FootedSapphire Blue FinPlankton Patties
Megan ShellWhirlpool DribbleTRex PetRight FootedEmerald Green FinKelpie Crunchies
Alex MorganaWhirlpool DribbleStegosaurus PetLeft FootedEmerald Green FinSeaweed Chips
Cristiano WaveWhirlpool DribbleAnkylosaurus PetLeft FootedCoral Pink FinKelpie Crunchies
Kevin De SplashTail HeaderVelociraptor PetLeft FootedSapphire Blue FinPlankton Patties
Sam KerriganMega PassStegosaurus PetRight FootedCoral Pink FinSeaweed Chips
Virgil Van ReefTidal TackleAnkylosaurus PetLeft FootedCoral Pink FinKelpie Crunchies
Trinity RodmanTidal TackleAnkylosaurus PetRight FootedEmerald Green FinPlankton Patties
Clue 1

Exponents

The stadium scoreboard measures power in exponential boosts. Solve the exponent puzzle to reveal the first suspect lead.

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
169
4
441
100
361
400
400
324
361
625
27
49
441
121
625
49
T
169
4
324
100
441
324
T
169
128
441
81
243
441
T
169
13^2 =T
5^4 =N
18^2 =A
2^2 =H
19^2 =I
2^7 =R
10^2 =V
9^2 =X
21^2 =E
20^2 =L
3^5 =P
11^2 =S
3^3 =D
7^2 =O
0/14 letters found
Clue 2

Square roots

The referee scanned the square stadium field to trace the culprit path. Calculate the square roots to unlock the next 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.

W
10
12
14
19
5
22
22
5
22
22
23
W
10
23
24
12
17
2
14
8
20
20
14
5
21
11
12
3
11
20
19
17
20
23
9
sqrt(100) =W
sqrt(4) =H
sqrt(529) =A
sqrt(441) =D
sqrt(144) =I
sqrt(81) =L
sqrt(289) =G
sqrt(361) =N
sqrt(400) =O
sqrt(121) =K
sqrt(484) =S
sqrt(196) =T
sqrt(9) =C
sqrt(576) =R
sqrt(64) =F
sqrt(25) =E
0/16 letters found
Clue 3

Pythagorean theorem

The mystery kicker ran diagonally across the pitch from corner to corner. Use the right triangle distance to spot the evidence.

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

C
30
87
10
74
65
52
5
17
75
39
58
25
29
13
5
25
75
58
13
13
41
68
52
5
25
13
50
68
65
68
25
C
30
50
legs 18 and 24, hypotenuse =C
legs 8 and 15, hypotenuse =F
legs 20 and 21, hypotenuse =K
legs 7 and 24, hypotenuse =N
legs 32 and 60, hypotenuse =E
legs 40 and 42, hypotenuse =A
legs 60 and 63, hypotenuse =R
legs 24 and 70, hypotenuse =M
legs 5 and 12, hypotenuse =T
legs 15 and 36, hypotenuse =L
legs 9 and 40, hypotenuse =I
legs 14 and 48, hypotenuse =H
legs 6 and 8, hypotenuse =U
legs 21 and 72, hypotenuse =P
legs 3 and 4, hypotenuse =O
legs 20 and 48, hypotenuse =S
legs 25 and 60, hypotenuse =B
0/17 letters found
Clue 4

Order of operations

The stadium computer tallied the penalty stats using strict rules. Work through the steps in order to decode the message.

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
82
69
A
82
27
27
113
28
8
37
16
114
93
37
91
28
108
69
59
A
82
114
37
120
A
82
69
91
65
93
108
80
11 × 9 - 17 =A
10 + 9 × 2 =I
12 × 12 - 24 =W
68 + 5 × 8 =N
10 × 4 - 24 =B
9 × 12 - 28 =D
53 + 2 × 3 =C
1 + 9 × 4 =E
57 + 4 × 3 =S
7 × 4 - 1 =P
11 × 11 - 8 =H
2 + 3 × 2 =R
59 + 3 × 2 =O
61 + 6 × 5 =F
11 × 12 - 18 =L
81 + 3 × 4 =U
0/16 letters found
Clue 5

Two-step equations — the last clue

The detective found a locked locker with two key numbers needed to open it. Solve the equations to find the final clue.

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
4x + 12 = 20, x = ?
4x + 7 = 47, x = ?
5x + 3 = 8, x = ?
5x + 6 = 66, x = ?
3x + 7 = 22, x = ?
5x + 10 = 50, x = ?
6x + 7 = 31, x = ?
2x + 11 = 23, x = ?
4x + 3 = 15, x = ?
6x + 9 = 63, x = ?
2x + 5 = 27, x = ?
Step 2 — cross out the sentence with each answer
1.The villain performed a tail header, then signaled a triceratops pet.
2.The villain executed a whirlpool dribble, then signaled a triceratops pet.
3.The villain performed a tail header, then called a trex pet.
4.The villain executed a whirlpool dribble, then called a trex pet.
5.The villain executed a whirlpool dribble, then summoned a velociraptor pet.
6.The villain delivered a mega pass, then sent an ankylosaurus pet.
7.The villain delivered a mega pass, then summoned a velociraptor pet.
8.The villain performed a tail header, then summoned a velociraptor pet.
9.The villain used a bicycle kick to score, then called a trex pet.
10.The villain executed a whirlpool dribble, then sent an ankylosaurus pet.
11.The villain delivered a mega pass, then called a trex pet.
12.The villain used a bicycle kick to score, then sent an ankylosaurus pet.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 8 math
Math topics
Exponents, Square roots, Pythagorean theorem, Order of operations, Two-step equations
Reading level
grades 3-4
Theme
The Great Jurassic Lagoon Soccer Cup Mystery — set in Jurassic Lagoon Underwater Stadium
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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