Math Crackers
🔎 HalloweenGrade 8Reading: grades 7-9ExponentsSquare rootsPythagorean theoremOrder of operationsTwo-step equations

The Pumpkin Patch Phantom

Someone smashed the prize pumpkin right before midnight! Solve the math clues to identify the culprit before the weigh-in ends.

Suspects

Possible suspects

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

21 of 21 still in play
NameMain PowerExtra PowerTellHairWeakness
Gomez AddamsPumpkin LauncherEcho ScreechRight HandedPurple SpikesSalt Spray
Vincent PriceShadow BlasterGhost StepRight HandedPurple SpikesBright Flash
Morticia AddamsBat SwarmGhost StepRight HandedBlack HoodBright Flash
Grandpa MunsterPumpkin LauncherWeb SpinnerLeft HandedBlack HoodGarlic Mist
Bela LugosiShadow BlasterEcho ScreechRight HandedPurple SpikesGarlic Mist
Wednesday AddamsPumpkin LauncherGlider WingsRight HandedBlack HoodGarlic Mist
Laurie StrodeShadow BlasterGlow AuraRight HandedBlack HoodGarlic Mist
Jack O LanternBat SwarmGlider WingsRight HandedOrange WigSalt Spray
Eddie MunsterFog WeaverWeb SpinnerRight HandedBlack HoodBright Flash
Casper GhostShadow BlasterGlider WingsRight HandedBlack HoodBright Flash
Ichabod CraneFog WeaverGhost StepRight HandedBlack HoodGarlic Mist
Winifred SandersonCandy ThiefEcho ScreechRight HandedPurple SpikesSalt Spray
Igor StitchCandy ThiefGhost StepRight HandedOrange WigBright Flash
Pugsley AddamsFog WeaverGlider WingsRight HandedPurple SpikesBright Flash
Victor FrankensteinPumpkin LauncherEcho ScreechRight HandedBlack HoodGarlic Mist
Elvira DarkFog WeaverGhost StepRight HandedPurple SpikesSalt Spray
Uncle FesterBat SwarmGlider WingsRight HandedBlack HoodGarlic Mist
Sarah SandersonCandy ThiefGlow AuraRight HandedBlack HoodBright Flash
Sabrina SpellmanBat SwarmGlider WingsLeft HandedBlack HoodGarlic Mist
Boris KarloffCandy ThiefGlow AuraLeft HandedOrange WigBright Flash
Salem SpellmanShadow BlasterGhost StepRight HandedBlack HoodGarlic Mist
Clue 1

Exponents

To calculate power growth in the spell book decode the exponential rating on the ancient cauldron.

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
64
256
196
324
144
196
4
400
729
49
196
324
144
49
T
64
32
324
196
243
256
49
324
T
64
324
T
64
196
225
4^3 =T
3^5 =G
2^5 =U
14^2 =E
12^2 =N
3^6 =D
2^8 =H
18^2 =S
15^2 =P
7^2 =O
2^2 =A
20^2 =K
0/12 letters found
Clue 2

Square roots

The security grid area is square so finding its side length requires evaluating the square root.

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
12
18
21
9
13
11
11
11
24
W
12
21
23
13
3
5
11
13
16
18
15
23
21
23
24
9
25
sqrt(144) =W
sqrt(324) =I
sqrt(256) =R
sqrt(529) =H
sqrt(441) =T
sqrt(625) =D
sqrt(9) =M
sqrt(225) =G
sqrt(121) =S
sqrt(576) =A
sqrt(81) =N
sqrt(169) =E
sqrt(25) =U
0/13 letters found
Clue 3

Pythagorean theorem

To measure the diagonal path taken across the pumpkin field calculate the hypotenuse.

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

G
74
75
26
10
34
51
5
34
68
39
51
29
75
68
20
15
39
29
20
5
40
52
52
legs 24 and 70, hypotenuse =G
legs 20 and 21, hypotenuse =H
legs 9 and 12, hypotenuse =D
legs 6 and 8, hypotenuse =L
legs 32 and 60, hypotenuse =S
legs 21 and 72, hypotenuse =A
legs 20 and 48, hypotenuse =F
legs 10 and 24, hypotenuse =R
legs 15 and 36, hypotenuse =T
legs 12 and 16, hypotenuse =E
legs 3 and 4, hypotenuse =M
legs 16 and 30, hypotenuse =I
legs 24 and 45, hypotenuse =C
legs 24 and 32, hypotenuse =O
0/14 letters found
Clue 4

Order of operations

The automated lock keypad requires evaluating the operational priority of the code steps.

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

B
92
53
99
44
100
110
91
91
39
82
99
B
92
46
61
44
43
112
46
99
84
39
43
46
14
8
99
61
84
14
39
10 × 10 - 8 =B
12 × 6 - 26 =R
8 × 7 - 12 =C
1 + 6 × 7 =S
12 × 9 - 9 =A
79 + 7 × 3 =K
12 × 9 - 26 =F
2 + 6 × 2 =E
7 × 10 - 17 =L
11 × 11 - 11 =H
71 + 5 × 4 =O
91 + 3 × 7 =T
4 + 2 × 2 =M
10 × 6 - 21 =D
10 × 9 - 29 =I
11 × 10 - 26 =N
0/16 letters found
Clue 5

Two-step equations — the last clue

To balance the scale at the weighing station solve the two step equation for the missing weight.

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
5x + 1 = 51, x = ?
3x + 1 = 13, x = ?
2x + 1 = 23, x = ?
2x + 10 = 26, x = ?
2x + 10 = 28, x = ?
2x + 1 = 13, x = ?
2x + 3 = 9, x = ?
3x + 2 = 38, x = ?
4x + 6 = 10, x = ?
2x + 10 = 24, x = ?
2x + 11 = 15, x = ?
Step 2 — cross out the sentence with each answer
1.The villain launched a heavy pumpkin, then used ghost step.
2.The villain wove a thick fog, then used ghost step.
3.The villain snatched the candy bag, then spun a sticky web.
4.The villain launched a heavy pumpkin, then deployed glider wings.
5.The villain fired a shadow blast, then activated a glow aura.
6.The villain summoned a bat swarm, then spun a sticky web.
7.The villain summoned a bat swarm, then unleashed an echo screech.
8.The villain summoned a bat swarm, then used ghost step.
9.The villain summoned a bat swarm, then activated a glow aura.
10.The villain summoned a bat swarm, then deployed glider wings.
11.The villain launched a heavy pumpkin, then unleashed an echo screech.
12.The villain wove a thick fog, then deployed glider wings.
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 7-9
Theme
The Pumpkin Patch Phantom — set in Midnight Hollow Pumpkin Patch
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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