🔎 HalloweenGrade 3Reading: grades 3-4Place valueAdditionSubtractionRoundingFractions of a number
The Case of the Missing Golden Pumpkin
The Golden Pumpkin was stolen from the town square right before the midnight parade! Crack the math clues to discover who took it.
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 | Disguise | Gadget | Habit | Wig Color | Bait |
|---|---|---|---|---|---|
| Pugsley Addams | Witch Hat | Magic Broom | Left Handed | Purple Hair | Caramel Apple |
| Wednesday Addams | Ghost Cape | Fog Machine | Left Handed | Purple Hair | Chocolate Bar |
| Wicked Witch | Vampire Fangs | Glow Stick | Left Handed | Orange Hair | Caramel Apple |
| Norman Babcock | Bat Wings | Fog Machine | Left Handed | Orange Hair | Chocolate Bar |
| Gomez Addams | Zombie Mask | Flashlight | Left Handed | Black Hair | Candy Corn |
| Mavis Dracula | Zombie Mask | Spider Web | Left Handed | Orange Hair | Caramel Apple |
| Mayor Of Halloween | Zombie Mask | Flashlight | Left Handed | Black Hair | Chocolate Bar |
| Morticia Addams | Vampire Fangs | Fog Machine | Left Handed | Orange Hair | Chocolate Bar |
| Count Dracula | Bat Wings | Flashlight | Left Handed | Orange Hair | Caramel Apple |
| Coraline Jones | Bat Wings | Magic Broom | Left Handed | Purple Hair | Chocolate Bar |
| Zero Hound | Zombie Mask | Magic Broom | Left Handed | Orange Hair | Caramel Apple |
| Beetle Juice | Witch Hat | Glow Stick | Right Handed | Purple Hair | Candy Corn |
| Dr Finkelstein | Ghost Cape | Fog Machine | Right Handed | Purple Hair | Caramel Apple |
| Denis Dracula | Zombie Mask | Spider Web | Left Handed | Black Hair | Candy Corn |
| Bride Of Frank | Zombie Mask | Flashlight | Right Handed | Orange Hair | Chocolate Bar |
| Casper Ghost | Vampire Fangs | Flashlight | Left Handed | Purple Hair | Caramel Apple |
| Igor Helper | Vampire Fangs | Magic Broom | Left Handed | Orange Hair | Caramel Apple |
| Sally Skellington | Vampire Fangs | Glow Stick | Left Handed | Black Hair | Caramel Apple |
| Glinda Good | Zombie Mask | Fog Machine | Right Handed | Black Hair | Chocolate Bar |
| Frankenstein Monster | Zombie Mask | Flashlight | Right Handed | Orange Hair | Caramel Apple |
| Jonathan Loughran | Ghost Cape | Flashlight | Left Handed | Orange Hair | Chocolate Bar |
Clue 1
Place value
You examine the door lock. Read the place value decoder on the keypad to find the first 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.
T
4000
6000
100
60
30
2000
2000
50
30
8000
80
700
100
90
8000
700
T
4000
40
90
100
50
500
2000
700
20
90
T
4000
30
5000
7000
What is the value of the 4 in 64,090?T
What is the value of the 1 in 164?E
What is the value of the 9 in 397?S
What is the value of the 2 in 721?W
What is the value of the 8 in 6,385?D
What is the value of the 4 in 9,540?U
What is the value of the 3 in 7,635?I
What is the value of the 2 in 2,573?L
What is the value of the 7 in 7,129?K
What is the value of the 8 in 98,534?N
What is the value of the 5 in 259?A
What is the value of the 5 in 5,219?C
What is the value of the 7 in 1,768?O
What is the value of the 6 in 6,828?H
What is the value of the 5 in 3,541?G
What is the value of the 6 in 5,962?V
0/16 letters found
Clue 2
Addition
You tally up the spooky footprints near the pumpkin patch. Add them together to uncover another 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.
T
289
440
909
873
386
873
542
909
451
T
289
472
909
304
T
289
392
909
440
820
517
957
472
909
304
T
289
440
981
517
957
542
212
820
517
T
289
873
139 + 150 =T
182 + 210 =B
145 + 306 =C
515 + 394 =E
207 + 97 =F
329 + 491 =I
489 + 492 =A
349 + 524 =S
318 + 224 =P
121 + 91 =R
305 + 212 =N
206 + 180 =U
216 + 256 =L
517 + 440 =D
212 + 228 =H
0/15 letters found
Clue 3
Subtraction
Some candy bags are missing from the potion cart. Subtract the difference to reveal 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.
T
574
838
636
434
610
770
770
126
610
782
408
126
667
667
T
574
119
791
791
636
339
292
788
126
391
126
528
126
409
636
770
126
791
791
770
636
629 - 55 =T
616 - 6 =I
877 - 107 =L
282 - 163 =O
860 - 69 =P
649 - 215 =V
691 - 352 =D
596 - 187 =M
923 - 256 =S
486 - 360 =A
732 - 324 =W
1218 - 380 =H
659 - 268 =C
567 - 39 =R
811 - 29 =N
911 - 275 =E
1134 - 346 =Y
306 - 14 =B
0/18 letters found
Clue 4
Rounding
The radar scanner shows an estimated distance rounded to the nearest ten. Round the digits to get the 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.
S
900
600
6000
20
8000
3000
S
900
50
200
50
6000
20
8000
700
500
800
20
60
6000
70
500
6000
500
200
50
30
8000
3000
Round 871 to the nearest hundredS
Round 52 to the nearest tenO
Round 195 to the nearest hundredF
Round 21 to the nearest tenA
Round 2,599 to the nearest thousandD
Round 722 to the nearest hundredG
Round 637 to the nearest hundredT
Round 32 to the nearest tenU
Round 804 to the nearest hundredH
Round 7,986 to the nearest thousandN
Round 60 to the nearest tenI
Round 66 to the nearest tenW
Round 521 to the nearest hundredE
Round 5,709 to the nearest thousandR
0/14 letters found
Clue 5
Fractions of a number — the last clue
The spider web breaks into fractions of silk threads. Calculate the fraction to decode 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
4/6 of 3 = ?
1/8 of 64 = ?
1/3 of 36 = ?
5/10 of 14 = ?
2/10 of 25 = ?
5/10 of 22 = ?
1/8 of 72 = ?
4/10 of 25 = ?
2/6 of 3 = ?
1/3 of 12 = ?
1/10 of 60 = ?
Step 2 — cross out the sentence with each answer
1.The villain snickered with vampire fangs, then shot out a spider web.
2.The villain snickered with vampire fangs, then swept past on a magic broom.
3.The villain stumbled in a zombie mask, then shot out a spider web.
4.The villain flew around in a ghost cape, then shined a flashlight.
5.The villain stumbled in a zombie mask, then snapped a glow stick.
6.The villain snickered with vampire fangs, then snapped a glow stick.
7.The villain stumbled in a zombie mask, then pumped out thick fog.
8.The villain flapped away with bat wings, then shined a flashlight.
9.The villain flapped away with bat wings, then pumped out thick fog.
10.The villain cackled under a witch hat, then shined a flashlight.
11.The villain cackled under a witch hat, then snapped a glow stick.
12.The villain stumbled in a zombie mask, then swept past on a magic broom.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Missing Golden Pumpkin
Culprit: Mavis Dracula (Zombie Mask · Spider Web · Left Handed · Orange Hair · Caramel Apple)
- Clue 1 (Place value): "THE VILLAIN DOES NOT USE A GLOW STICK"What is the value of the 4 in 64,090? = 4000 (T) · What is the value of the 1 in 164? = 100 (E) · What is the value of the 9 in 397? = 90 (S) · What is the value of the 2 in 721? = 20 (W) · What is the value of the 8 in 6,385? = 80 (D) · What is the value of the 4 in 9,540? = 40 (U) · What is the value of the 3 in 7,635? = 30 (I) · What is the value of the 2 in 2,573? = 2000 (L) · What is the value of the 7 in 7,129? = 7000 (K) · What is the value of the 8 in 98,534? = 8000 (N) · What is the value of the 5 in 259? = 50 (A) · What is the value of the 5 in 5,219? = 5000 (C) · What is the value of the 7 in 1,768? = 700 (O) · What is the value of the 6 in 6,828? = 6000 (H) · What is the value of the 5 in 3,541? = 500 (G) · What is the value of the 6 in 5,962? = 60 (V)
- Clue 2 (Addition): "THE SUSPECT LEFT BEHIND LEFT HAND PRINTS"139 + 150 = 289 (T) · 182 + 210 = 392 (B) · 145 + 306 = 451 (C) · 515 + 394 = 909 (E) · 207 + 97 = 304 (F) · 329 + 491 = 820 (I) · 489 + 492 = 981 (A) · 349 + 524 = 873 (S) · 318 + 224 = 542 (P) · 121 + 91 = 212 (R) · 305 + 212 = 517 (N) · 206 + 180 = 386 (U) · 216 + 256 = 472 (L) · 517 + 440 = 957 (D) · 212 + 228 = 440 (H)
- Clue 3 (Subtraction): "THE VILLAIN WAS STOPPED BY A CARAMEL APPLE"629 - 55 = 574 (T) · 616 - 6 = 610 (I) · 877 - 107 = 770 (L) · 282 - 163 = 119 (O) · 860 - 69 = 791 (P) · 649 - 215 = 434 (V) · 691 - 352 = 339 (D) · 596 - 187 = 409 (M) · 923 - 256 = 667 (S) · 486 - 360 = 126 (A) · 732 - 324 = 408 (W) · 1218 - 380 = 838 (H) · 659 - 268 = 391 (C) · 567 - 39 = 528 (R) · 811 - 29 = 782 (N) · 911 - 275 = 636 (E) · 1134 - 346 = 788 (Y) · 306 - 14 = 292 (B)
- Clue 4 (Rounding): "STRANDS OF ORANGE HAIR WERE FOUND"Round 871 to the nearest hundred = 900 (S) · Round 52 to the nearest ten = 50 (O) · Round 195 to the nearest hundred = 200 (F) · Round 21 to the nearest ten = 20 (A) · Round 2,599 to the nearest thousand = 3000 (D) · Round 722 to the nearest hundred = 700 (G) · Round 637 to the nearest hundred = 600 (T) · Round 32 to the nearest ten = 30 (U) · Round 804 to the nearest hundred = 800 (H) · Round 7,986 to the nearest thousand = 8000 (N) · Round 60 to the nearest ten = 60 (I) · Round 66 to the nearest ten = 70 (W) · Round 521 to the nearest hundred = 500 (E) · Round 5,709 to the nearest thousand = 6000 (R)
- Clue 5 (Fractions of a number): surviving statement (box 3) → Mavis Dracula4/6 of 3 = 2 · 1/8 of 64 = 8 · 1/3 of 36 = 12 · 5/10 of 14 = 7 · 2/10 of 25 = 5 · 5/10 of 22 = 11 · 1/8 of 72 = 9 · 4/10 of 25 = 10 · 2/6 of 3 = 1 · 1/3 of 12 = 4 · 1/10 of 60 = 6
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Place value, Addition, Subtraction, Rounding, Fractions of a number
- Reading level
- grades 3-4
- Theme
- The Case of the Missing Golden Pumpkin — set in Pumpkin Hollow
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects