Math Crackers
🔎 HalloweenGrade 3Reading: grades 3-4Place valueSkip countingAdditionRoundingMissing addends

The Spooky Pumpkin Heist

Someone snuck into Whispering Hollow and stole the Golden Pumpkin prize right before the costume parade! Solve the math clues to uncover the culprit.

Suspects

Possible suspects

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

21 of 21 still in play
NameTrickDisguiseHabitCostume WigFear
Sabrina SpellGhostly WailSkeleton MaskUses LanternJet Black WigFlashlights
Gomez DarkPumpkin BombSpider SuitWears RingJet Black WigFlashlights
Rory RavenGhostly WailVampire CapeWears RingBright Orange WigSqueaky Toys
Vince VampireFog CloakVampire CapeUses LanternJet Black WigFlashlights
Frankenstein FrankPumpkin BombMummy WrapsUses LanternBright Orange WigGarlic Sprays
Jack LanternPumpkin BombVampire CapeUses LanternJet Black WigFlashlights
Mindy MummyGhostly WailMummy WrapsUses LanternJet Black WigFlashlights
Igor BeetleBat SwarmMummy WrapsWears RingNeon Green WigGarlic Sprays
Morticia NightPumpkin BombWitch HatWears RingBright Orange WigFlashlights
Sam SkeletonCandy TrapVampire CapeUses LanternJet Black WigSqueaky Toys
Pippa PumpkinPumpkin BombSpider SuitWears RingJet Black WigGarlic Sprays
Norman BatesCandy TrapSkeleton MaskWears RingJet Black WigFlashlights
Elvira ShadePumpkin BombSkeleton MaskUses LanternJet Black WigGarlic Sprays
Wanda WitchFog CloakWitch HatUses LanternJet Black WigFlashlights
Draco MalPumpkin BombSkeleton MaskWears RingNeon Green WigFlashlights
Casper CatFog CloakMummy WrapsUses LanternNeon Green WigFlashlights
Bram StokerCandy TrapSpider SuitWears RingBright Orange WigFlashlights
Boris KarloffFog CloakWitch HatUses LanternNeon Green WigGarlic Sprays
Wendy WraithCandy TrapVampire CapeUses LanternNeon Green WigGarlic Sprays
Gale GhoulBat SwarmMummy WrapsWears RingJet Black WigGarlic Sprays
Sweeney ToddBat SwarmWitch HatUses LanternJet Black WigSqueaky Toys
Clue 1

Place value

Check the house numbers along the dark street. The digit in the tens place gives you the clue 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.

T
200
7000
3000
300
90
600
600
800
90
500
60
400
3000
40
500
400
T
200
900
3000
800
4000
800
900
90
T
200
6000
7000
7000
800
T
200
What is the value of the 2 in 255?T
What is the value of the 8 in 857?A
What is the value of the 3 in 390?V
What is the value of the 3 in 3,204?E
What is the value of the 9 in 894?I
What is the value of the 9 in 7,981?W
What is the value of the 6 in 4,654?L
What is the value of the 5 in 6,568?N
What is the value of the 6 in 86,820?C
What is the value of the 4 in 8,845?S
What is the value of the 4 in 84,677?R
What is the value of the 7 in 47,580?H
What is the value of the 4 in 483?O
What is the value of the 6 in 5,164?D
0/14 letters found
Clue 2

Skip counting

Count the jack-o-lanterns along the sidewalk by tens to reveal the next piece of 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.

T
12
40
28
65
50
65
9
28
8
T
12
8
42
70
70
45
28
90
42
25
16
55
27
45
10
25
16
42
10
T
12
28
70
10
Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18T
Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12C
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80R
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75S
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55I
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20L
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110D
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33W
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, ___, 12, 14N
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, ___, 45, 50H
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65O
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, ___, 55, 60U
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48A
Skip-count by 3s. Fill the blank: 3, 6, ___, 12, 15P
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32E
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35G
0/16 letters found
Clue 3

Addition

Add up all the trick-or-treat bags collected at the pumpkin patch to unlock a secret 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.

B
319
758
974
690
367
985
297
709
587
569
367
709
974
690
367
985
569
569
634
587
758
212
630
985
367
212
569
538
569
308
212
634
985
873
297
297
125 + 194 =B
172 + 136 =P
312 + 275 =A
287 + 282 =S
318 + 316 =C
303 + 235 =U
322 + 368 =G
586 + 287 =O
78 + 134 =E
204 + 426 =D
317 + 392 =L
592 + 382 =I
618 + 367 =T
139 + 158 =F
453 + 305 =R
131 + 236 =H
0/16 letters found
Clue 4

Rounding

The spooky radar screen rounds the villain distance to the nearest hundred.

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
9000
60
7000
40
7000
T
9000
7000
800
T
9000
50
6000
7000
4000
200
2000
5000
40
600
80
7000
T
9000
300
500
600
800
90
700
50
30
4000
50
300
7000
900
Round 8,634 to the nearest thousandT
Round 287 to the nearest hundredB
Round 5,492 to the nearest thousandN
Round 4,483 to the nearest thousandF
Round 27 to the nearest tenG
Round 887 to the nearest hundredR
Round 158 to the nearest hundredO
Round 522 to the nearest hundredL
Round 5,573 to the nearest thousandV
Round 6,991 to the nearest thousandE
Round 64 to the nearest tenH
Round 738 to the nearest hundredW
Round 849 to the nearest hundredC
Round 50 to the nearest tenI
Round 604 to the nearest hundredA
Round 78 to the nearest tenJ
Round 42 to the nearest tenD
Round 90 to the nearest tenK
Round 2,144 to the nearest thousandU
0/19 letters found
Clue 5

Missing addends — the last clue

Find the missing number of glow sticks needed to light up the path to spot the suspect.

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
5 + ___ = 14
5 + ___ = 9
3 + ___ = 14
9 + ___ = 11
6 + ___ = 9
6 + ___ = 16
8 + ___ = 14
8 + ___ = 13
3 + ___ = 15
6 + ___ = 13
1 + ___ = 9
Step 2 — cross out the sentence with each answer
1.The villain howled with a ghostly wail, then pulled on a skeleton mask.
2.The villain vanished into a fog cloak, then adjusted a witch hat.
3.The villain vanished into a fog cloak, then pulled on a skeleton mask.
4.The villain vanished into a fog cloak, then swished a vampire cape.
5.The villain summoned a bat swarm, then wrapped up in mummy wraps.
6.The villain vanished into a fog cloak, then wrapped up in mummy wraps.
7.The villain tossed a pumpkin bomb, then pulled on a skeleton mask.
8.The villain vanished into a fog cloak, then crawled into a spider suit.
9.The villain tossed a pumpkin bomb, then swished a vampire cape.
10.The villain summoned a bat swarm, then pulled on a skeleton mask.
11.The villain howled with a ghostly wail, then wrapped up in mummy wraps.
12.The villain howled with a ghostly wail, then crawled into a spider suit.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 3 math
Math topics
Place value, Skip counting, Addition, Rounding, Missing addends
Reading level
grades 3-4
Theme
The Spooky Pumpkin Heist — set in Whispering Hollow Trick-or-Treat Trail
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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