🔎 HalloweenGrade 4Reading: grades 3-4Place valueMultiplicationRoundingAdditionMissing addends
The Spooky Street Halloween Mystery
On Halloween night, someone stole the Golden Pumpkin Trophy right before the neighborhood parade! Solve the math clues to unmask 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
| Name | Trick | Spell | Dominant Hand | Wig Color | Fear |
|---|---|---|---|---|---|
| Bram Stoker | Bat Swarm | Shadow Sneak | Right handed | Black hair | Garlic spray |
| Frank N Stein | Candy Trap | Howl Blast | Right handed | Black hair | Silver whistle |
| Casper Ghost | Candy Trap | Broom Glide | Right handed | Purple hair | Silver whistle |
| Boris Beast | Ghost Whisper | Howl Blast | Left handed | Black hair | Garlic spray |
| Timothy Tomb | Spider Web | Fog Cloud | Right handed | Purple hair | Silver whistle |
| Fiona Fog | Bat Swarm | Goo Dash | Left handed | Black hair | Garlic spray |
| Sabrina Spell | Candy Trap | Broom Glide | Left handed | Black hair | Silver whistle |
| Gwendolyn Ghoul | Spider Web | Broom Glide | Left handed | Purple hair | Flashlight ray |
| Barnaby Bat | Bat Swarm | Goo Dash | Right handed | Black hair | Garlic spray |
| Mary Shelley | Pumpkin Blast | Goo Dash | Left handed | Purple hair | Flashlight ray |
| Count Vlad | Candy Trap | Shadow Sneak | Left handed | Black hair | Silver whistle |
| Pumpkin Pete | Ghost Whisper | Shadow Sneak | Right handed | Purple hair | Garlic spray |
| Candy Clara | Pumpkin Blast | Broom Glide | Left handed | Black hair | Garlic spray |
| Gomez Night | Spider Web | Broom Glide | Right handed | Black hair | Garlic spray |
| Jasper Jack | Ghost Whisper | Shadow Sneak | Right handed | Purple hair | Flashlight ray |
| Hazel Witch | Candy Trap | Shadow Sneak | Right handed | Black hair | Garlic spray |
| Sally Skeleton | Ghost Whisper | Howl Blast | Right handed | Black hair | Flashlight ray |
| Jack O Lantern | Pumpkin Blast | Fog Cloud | Right handed | Black hair | Garlic spray |
| Morticia Night | Spider Web | Howl Blast | Left handed | Purple hair | Garlic spray |
| Oliver Owl | Candy Trap | Goo Dash | Left handed | Black hair | Silver whistle |
| Penelope Phantom | Bat Swarm | Howl Blast | Left handed | Purple hair | Flashlight ray |
Clue 1
Place value
The sneaky culprit locked a clue box using a secret code on the digital porch clock.
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
400
3000
5000
200
90
50
50
500
90
6000
900
60
5000
7000
6000
60
T
400
800
7000
5000
20
60
40
700
50
60
800
900
What is the value of the 4 in 492?T
What is the value of the 7 in 3,785?C
What is the value of the 5 in 450?L
What is the value of the 5 in 9,511?A
What is the value of the 4 in 647?G
What is the value of the 9 in 291?I
What is the value of the 8 in 870?U
What is the value of the 6 in 6,095?N
What is the value of the 3 in 3,450?H
What is the value of the 2 in 8,526?F
What is the value of the 2 in 9,207?V
What is the value of the 9 in 1,964?D
What is the value of the 7 in 7,284?S
What is the value of the 6 in 869?O
What is the value of the 5 in 15,997?E
0/15 letters found
Clue 2
Multiplication facts (1-12)
You find crates of Halloween decorations stacked evenly in the haunted backyard.
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
121
100
77
T
121
90
24
120
16
9
9
100
36
33
24
90
56
45
100
T
121
100
24
2
20
77
20
9
2
77
24
16
11 × 11 =T
1 × 2 =N
9 × 1 =S
8 × 7 =I
10 × 10 =H
4 × 4 =K
5 × 9 =G
2 × 12 =A
10 × 12 =C
12 × 3 =O
3 × 11 =W
10 × 9 =R
7 × 11 =E
4 × 5 =D
0/14 letters found
Clue 3
Rounding
A magic ghost detector only gives rounded numbers for distances through the mist.
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
110
2300
170
70
3000
1700
T
200
2300
4300
4300
700
3000
90
4300
70
170
2900
700
4300
7000
230
370
1700
9000
4300
700
900
Round 207 to the nearest hundredT
Round 680 to the nearest hundredA
Round 2,318 to the nearest hundredE
Round 2,855 to the nearest hundredG
Round 174 to the nearest tenM
Round 89 to the nearest tenF
Round 4,252 to the nearest hundredR
Round 69 to the nearest tenO
Round 7,052 to the nearest thousandL
Round 373 to the nearest tenC
Round 927 to the nearest hundredY
Round 230 to the nearest tenI
Round 2,583 to the nearest thousandN
Round 107 to the nearest tenH
Round 8,910 to the nearest thousandP
Round 1,722 to the nearest hundredS
0/16 letters found
Clue 4
Addition
You gather up all the leftover glow sticks dropped along the spooky sidewalk.
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
5016
8220
4734
9182
9067
9182
3714
4734
7683
T
5016
6577
4734
7134
T
5016
9182
T
5016
2519
9663
2478
6588
9182
9060
7134
9261
6577
9663
7683
5976
8220
9663
5525
2519
2229 + 2787 =T
1691 + 787 =N
2128 + 3397 =I
3666 + 2911 =L
4997 + 4063 =O
3086 + 6096 =S
1734 + 785 =R
3707 + 3976 =C
1539 + 3195 =E
4679 + 4388 =U
5386 + 3875 =B
2519 + 1195 =P
3004 + 2972 =K
4624 + 3596 =H
4267 + 5396 =A
4647 + 2487 =F
3247 + 3341 =D
0/17 letters found
Clue 5
Missing addends — the last clue
A trick-or-treat bag needs a total candy count, but some numbers are missing.
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
6 + ___ = 9
3 + ___ = 9
8 + ___ = 12
36 + ___ = 37
31 + ___ = 42
39 + ___ = 49
28 + ___ = 30
32 + ___ = 40
30 + ___ = 39
30 + ___ = 35
17 + ___ = 24
Step 2 — cross out the sentence with each answer
1.The villain summoned a bat swarm, then glided away on a broom.
2.The villain laid a sugary candy trap, then dashed across green goo.
3.The villain summoned a bat swarm, then dashed across green goo.
4.The villain wove a spider web trap, then glided away on a broom.
5.The villain wove a spider web trap, then howled at the moon.
6.The villain summoned a bat swarm, then sneaked into shadows.
7.The villain blasted a pumpkin explosion, then dashed across green goo.
8.The villain wove a spider web trap, then created a thick fog cloud.
9.The villain wove a spider web trap, then dashed across green goo.
10.The villain blasted a pumpkin explosion, then created a thick fog cloud.
11.The villain laid a sugary candy trap, then howled at the moon.
12.The villain laid a sugary candy trap, then sneaked into shadows.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Spooky Street Halloween Mystery
Culprit: Hazel Witch (Candy Trap · Shadow Sneak · Right handed · Black hair · Garlic spray)
- Clue 1 (Place value): "THE VILLAIN DOES NOT USE FOG CLOUD"What is the value of the 4 in 492? = 400 (T) · What is the value of the 7 in 3,785? = 700 (C) · What is the value of the 5 in 450? = 50 (L) · What is the value of the 5 in 9,511? = 500 (A) · What is the value of the 4 in 647? = 40 (G) · What is the value of the 9 in 291? = 90 (I) · What is the value of the 8 in 870? = 800 (U) · What is the value of the 6 in 6,095? = 6000 (N) · What is the value of the 3 in 3,450? = 3000 (H) · What is the value of the 2 in 8,526? = 20 (F) · What is the value of the 2 in 9,207? = 200 (V) · What is the value of the 9 in 1,964? = 900 (D) · What is the value of the 7 in 7,284? = 7000 (S) · What is the value of the 6 in 869? = 60 (O) · What is the value of the 5 in 15,997? = 5000 (E)
- Clue 2 (Multiplication facts (1-12)): "THE TRACKS SHOW A RIGHT HANDED SNEAK"11 × 11 = 121 (T) · 1 × 2 = 2 (N) · 9 × 1 = 9 (S) · 8 × 7 = 56 (I) · 10 × 10 = 100 (H) · 4 × 4 = 16 (K) · 5 × 9 = 45 (G) · 2 × 12 = 24 (A) · 10 × 12 = 120 (C) · 12 × 3 = 36 (O) · 3 × 11 = 33 (W) · 10 × 9 = 90 (R) · 7 × 11 = 77 (E) · 4 × 5 = 20 (D)
- Clue 3 (Rounding): "THE MONSTER RAN FROM GARLIC SPRAY"Round 207 to the nearest hundred = 200 (T) · Round 680 to the nearest hundred = 700 (A) · Round 2,318 to the nearest hundred = 2300 (E) · Round 2,855 to the nearest hundred = 2900 (G) · Round 174 to the nearest ten = 170 (M) · Round 89 to the nearest ten = 90 (F) · Round 4,252 to the nearest hundred = 4300 (R) · Round 69 to the nearest ten = 70 (O) · Round 7,052 to the nearest thousand = 7000 (L) · Round 373 to the nearest ten = 370 (C) · Round 927 to the nearest hundred = 900 (Y) · Round 230 to the nearest ten = 230 (I) · Round 2,583 to the nearest thousand = 3000 (N) · Round 107 to the nearest ten = 110 (H) · Round 8,910 to the nearest thousand = 9000 (P) · Round 1,722 to the nearest hundred = 1700 (S)
- Clue 4 (Addition): "THE SUSPECT LEFT STRANDS OF BLACK HAIR"2229 + 2787 = 5016 (T) · 1691 + 787 = 2478 (N) · 2128 + 3397 = 5525 (I) · 3666 + 2911 = 6577 (L) · 4997 + 4063 = 9060 (O) · 3086 + 6096 = 9182 (S) · 1734 + 785 = 2519 (R) · 3707 + 3976 = 7683 (C) · 1539 + 3195 = 4734 (E) · 4679 + 4388 = 9067 (U) · 5386 + 3875 = 9261 (B) · 2519 + 1195 = 3714 (P) · 3004 + 2972 = 5976 (K) · 4624 + 3596 = 8220 (H) · 4267 + 5396 = 9663 (A) · 4647 + 2487 = 7134 (F) · 3247 + 3341 = 6588 (D)
- Clue 5 (Missing addends): surviving statement (box 12) → Hazel Witch6 + ___ = 9 = 3 · 3 + ___ = 9 = 6 · 8 + ___ = 12 = 4 · 36 + ___ = 37 = 1 · 31 + ___ = 42 = 11 · 39 + ___ = 49 = 10 · 28 + ___ = 30 = 2 · 32 + ___ = 40 = 8 · 30 + ___ = 39 = 9 · 30 + ___ = 35 = 5 · 17 + ___ = 24 = 7
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Place value, Multiplication, Rounding, Addition, Missing addends
- Reading level
- grades 3-4
- Theme
- The Spooky Street Halloween Mystery — set in Creepy Creek Neighborhood
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects