🔎 HalloweenGrade 3Reading: grades 1-2Fractions of a numberMultiplicationRoundingAddition
The Halloween Haunt Mystery
Someone ruined the Halloween party! Solve the clues to catch the ghoul.
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 | Main Trick | Extra Trick | Hand Used | Hair Wig | Weakness |
|---|---|---|---|---|---|
| Pippin Pumpkin | Bat Swarm | Spooky Howl | Left Handed | Purple Hair | Salt Circle |
| Jack O Lantern | Pumpkin Blast | Spooky Howl | Right Handed | Green Locks | Salt Circle |
| Igor Helper | Pumpkin Blast | Candy Snatch | Right Handed | Orange Wig | Garlic Spray |
| Trixie Treat | Broom Fly | Skeleton Dance | Right Handed | Purple Hair | Salt Circle |
| Casper Ghost | Broom Fly | Candy Snatch | Right Handed | Orange Wig | Salt Circle |
| Wendy Witch | Broom Fly | Shadow Step | Right Handed | Orange Wig | Salt Circle |
| Stella Star | Ghost Shield | Skeleton Dance | Left Handed | Orange Wig | Garlic Spray |
| Pugsley Night | Pumpkin Blast | Spooky Howl | Right Handed | Orange Wig | Garlic Spray |
| Shadow Sean | Bat Swarm | Shadow Step | Right Handed | Green Locks | Garlic Spray |
| Mavis Dracula | Bat Swarm | Skeleton Dance | Right Handed | Orange Wig | Garlic Spray |
| Gloom Gary | Pumpkin Blast | Candy Snatch | Left Handed | Purple Hair | Salt Circle |
| Cobweb Carl | Slime Wave | Glowing Eyes | Right Handed | Orange Wig | Garlic Spray |
| Salem Cat | Bat Swarm | Glowing Eyes | Right Handed | Orange Wig | Garlic Spray |
| Wednesday Night | Broom Fly | Skeleton Dance | Left Handed | Orange Wig | Bright Flashlight |
| Bramble Toad | Bat Swarm | Candy Snatch | Left Handed | Orange Wig | Garlic Spray |
| Luna Moon | Ghost Shield | Spooky Howl | Right Handed | Purple Hair | Garlic Spray |
| Count Vlad | Bat Swarm | Shadow Step | Left Handed | Orange Wig | Garlic Spray |
| Uncle Fester | Slime Wave | Spooky Howl | Left Handed | Green Locks | Bright Flashlight |
| Hester Spell | Slime Wave | Shadow Step | Right Handed | Green Locks | Garlic Spray |
| Frankie Stein | Pumpkin Blast | Skeleton Dance | Left Handed | Purple Hair | Salt Circle |
| Gasket Ghoul | Slime Wave | Shadow Step | Right Handed | Orange Wig | Bright Flashlight |
Clue 1
Fractions of a number
We found a recipe for magic potion but only part of the bowl was filled.
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
23
12
5
39
15
28
28
17
15
11
35
24
5
6
11
24
T
23
37
6
5
7
17
11
35
18
6
11
17
T
23
7
12
2/10 of 115 =T
2/8 of 20 =E
1/5 of 90 =Y
3/6 of 22 =N
2/4 of 30 =I
2/6 of 51 =A
2/4 of 78 =V
2/10 of 140 =L
1/4 of 140 =D
1/4 of 24 =S
2/10 of 185 =U
4/8 of 48 =O
3/6 of 24 =H
1/4 of 28 =C
0/14 letters found
Clue 2
Multiplication facts (1-12)
The trick or treaters gathered their candy bags in equal rows on the porch.
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
56
20
22
5
T
64
42
20
7
7
7
36
22
36
90
5
54
56
T
64
56
36
42
10
20
10
60
5
48
48
36
5
42
8 × 8 =T
10 × 9 =R
2 × 11 =W
8 × 7 =H
7 × 1 =S
6 × 7 =N
1 × 5 =I
4 × 5 =E
12 × 4 =L
4 × 9 =A
5 × 2 =D
12 × 5 =V
9 × 6 =G
0/13 letters found
Clue 3
Rounding
The pumpkin scale only shows rounded numbers on its digital screen.
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
6000
4000
200
20
90
500
4000
80
90
200
200
T
9000
60
700
700
4000
7000
5000
900
300
90
500
600
30
20
200
700
500
90
900
Round 8,949 to the nearest thousandT
Round 77 to the nearest tenW
Round 26 to the nearest tenI
Round 57 to the nearest tenO
Round 241 to the nearest hundredS
Round 6,856 to the nearest thousandD
Round 317 to the nearest hundredG
Round 18 to the nearest tenC
Round 4,725 to the nearest thousandB
Round 5,524 to the nearest thousandH
Round 3,654 to the nearest thousandE
Round 702 to the nearest hundredP
Round 88 to the nearest tenA
Round 860 to the nearest hundredY
Round 478 to the nearest hundredR
Round 606 to the nearest hundredL
0/16 letters found
Clue 4
Addition
We tallied up all the spooky costumes in the town parade.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
O
907
966
230
586
635
829
593
672
635
361
661
966
230
586
447
361
593
829
966
829
293
O
907
482
586
447
230
661
361
424
829
586
829
490 + 417 =O
617 + 349 =R
389 + 246 =G
257 + 190 =D
131 + 99 =A
304 + 289 =W
299 + 287 =N
180 + 181 =S
212 + 449 =T
163 + 130 =F
260 + 164 =C
224 + 258 =U
446 + 383 =E
428 + 244 =I
0/14 letters found
Clue 5
Fractions of a number — the last clue
Only a small fraction of the haunted house lamps were still lit.
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
4/8 of 6 = ?
1/6 of 24 = ?
2/8 of 44 = ?
8/10 of 15 = ?
7/10 of 10 = ?
3/6 of 4 = ?
2/6 of 30 = ?
6/8 of 12 = ?
3/10 of 20 = ?
1/5 of 25 = ?
1/4 of 32 = ?
Step 2 — cross out the sentence with each answer
1.The villain shot a slime wave, then shone glowing eyes.
2.The villain blasted a pumpkin, then did a skeleton dance.
3.The villain blasted a pumpkin, then made a spooky howl.
4.The villain sent a bat swarm, then shone glowing eyes.
5.The villain flew on a broom, then made a spooky howl.
6.The villain flew on a broom, then stepped into shadow.
7.The villain sent a bat swarm, then made a spooky howl.
8.The villain raised a ghost shield, then made a spooky howl.
9.The villain flew on a broom, then did a skeleton dance.
10.The villain raised a ghost shield, then stepped into shadow.
11.The villain sent a bat swarm, then did a skeleton dance.
12.The villain blasted a pumpkin, then shone glowing eyes.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Halloween Haunt Mystery
Culprit: Cobweb Carl (Slime Wave · Glowing Eyes · Right Handed · Orange Wig · Garlic Spray)
- Clue 1 (Fractions of a number): "THE VILLAIN DOES NOT USE CANDY SNATCH"2/10 of 115 = 23 (T) · 2/8 of 20 = 5 (E) · 1/5 of 90 = 18 (Y) · 3/6 of 22 = 11 (N) · 2/4 of 30 = 15 (I) · 2/6 of 51 = 17 (A) · 2/4 of 78 = 39 (V) · 2/10 of 140 = 28 (L) · 1/4 of 140 = 35 (D) · 1/4 of 24 = 6 (S) · 2/10 of 185 = 37 (U) · 4/8 of 48 = 24 (O) · 3/6 of 24 = 12 (H) · 1/4 of 28 = 7 (C)
- Clue 2 (Multiplication facts (1-12)): "THE WITNESS SAW A RIGHT HANDED VILLAIN"8 × 8 = 64 (T) · 10 × 9 = 90 (R) · 2 × 11 = 22 (W) · 8 × 7 = 56 (H) · 7 × 1 = 7 (S) · 6 × 7 = 42 (N) · 1 × 5 = 5 (I) · 4 × 5 = 20 (E) · 12 × 4 = 48 (L) · 4 × 9 = 36 (A) · 5 × 2 = 10 (D) · 12 × 5 = 60 (V) · 9 × 6 = 54 (G)
- Clue 3 (Rounding): "THE SCARE WAS STOPPED BY GARLIC SPRAY"Round 8,949 to the nearest thousand = 9000 (T) · Round 77 to the nearest ten = 80 (W) · Round 26 to the nearest ten = 30 (I) · Round 57 to the nearest ten = 60 (O) · Round 241 to the nearest hundred = 200 (S) · Round 6,856 to the nearest thousand = 7000 (D) · Round 317 to the nearest hundred = 300 (G) · Round 18 to the nearest ten = 20 (C) · Round 4,725 to the nearest thousand = 5000 (B) · Round 5,524 to the nearest thousand = 6000 (H) · Round 3,654 to the nearest thousand = 4000 (E) · Round 702 to the nearest hundred = 700 (P) · Round 88 to the nearest ten = 90 (A) · Round 860 to the nearest hundred = 900 (Y) · Round 478 to the nearest hundred = 500 (R) · Round 606 to the nearest hundred = 600 (L)
- Clue 4 (Addition): "ORANGE WIG STRANDS WERE FOUND AT SCENE"490 + 417 = 907 (O) · 617 + 349 = 966 (R) · 389 + 246 = 635 (G) · 257 + 190 = 447 (D) · 131 + 99 = 230 (A) · 304 + 289 = 593 (W) · 299 + 287 = 586 (N) · 180 + 181 = 361 (S) · 212 + 449 = 661 (T) · 163 + 130 = 293 (F) · 260 + 164 = 424 (C) · 224 + 258 = 482 (U) · 446 + 383 = 829 (E) · 428 + 244 = 672 (I)
- Clue 5 (Fractions of a number): surviving statement (box 1) → Cobweb Carl4/8 of 6 = 3 · 1/6 of 24 = 4 · 2/8 of 44 = 11 · 8/10 of 15 = 12 · 7/10 of 10 = 7 · 3/6 of 4 = 2 · 2/6 of 30 = 10 · 6/8 of 12 = 9 · 3/10 of 20 = 6 · 1/5 of 25 = 5 · 1/4 of 32 = 8
About this mystery
- Grade level
- Grade 3 math
- Math topics
- Fractions of a number, Multiplication, Rounding, Addition
- Reading level
- grades 1-2
- Theme
- The Halloween Haunt Mystery — set in Spooky Town Festival
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects