🔎 HalloweenGrade 4Reading: grades 3-4Place valueRoundingAdditionSubtractionMissing addends
The Great Pumpkin Hollow Mystery
Someone snuck into the Pumpkin Hollow Festival and swiped the golden prize pumpkin! Solve the math clues to track down the culprit before midnight.
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 | Spooky Power | Carried Item | Eyewear | Hairstyle | Weakness |
|---|---|---|---|---|---|
| Jasper Ghost | Ghost Float | Candy Sack | No Spectacles | Purple Witch Hair | Bright Flashlights |
| Vesper Cloak | Shadow Dash | Candy Sack | No Spectacles | Green Warlock Hair | Garlic Juice |
| Bram Stoker | Pumpkin Blast | Haunted Mirror | Wears Spectacles | Orange Pumpkin Wig | Salt Sprinkles |
| Raven Dark | Ghost Float | Magic Wand | No Spectacles | Orange Pumpkin Wig | Garlic Juice |
| Piper Pumpkin | Ghost Float | Candy Sack | No Spectacles | Purple Witch Hair | Garlic Juice |
| Ember Dusk | Pumpkin Blast | Spell Book | No Spectacles | Purple Witch Hair | Garlic Juice |
| Opal Cauldron | Broom Glide | Candy Sack | No Spectacles | Purple Witch Hair | Garlic Juice |
| Victor Frankenstein | Broom Glide | Magic Wand | No Spectacles | Purple Witch Hair | Garlic Juice |
| Astrid Fane | Bat Swarm | Magic Wand | Wears Spectacles | Purple Witch Hair | Garlic Juice |
| Willow Web | Bat Swarm | Haunted Mirror | Wears Spectacles | Green Warlock Hair | Bright Flashlights |
| Tabitha Spell | Shadow Dash | Magic Wand | Wears Spectacles | Orange Pumpkin Wig | Salt Sprinkles |
| Luna Night | Bat Swarm | Magic Wand | Wears Spectacles | Orange Pumpkin Wig | Garlic Juice |
| Gideon Graves | Ghost Float | Spell Book | No Spectacles | Orange Pumpkin Wig | Salt Sprinkles |
| Wendy Witch | Broom Glide | Glow Lantern | No Spectacles | Green Warlock Hair | Garlic Juice |
| Jack Lantern | Ghost Float | Haunted Mirror | No Spectacles | Purple Witch Hair | Garlic Juice |
| Sabrina Spellman | Bat Swarm | Magic Wand | Wears Spectacles | Purple Witch Hair | Bright Flashlights |
| Hazel Witch | Ghost Float | Glow Lantern | Wears Spectacles | Purple Witch Hair | Garlic Juice |
| Mortimer Bones | Shadow Dash | Spell Book | No Spectacles | Purple Witch Hair | Salt Sprinkles |
| Corvin Raven | Bat Swarm | Glow Lantern | Wears Spectacles | Purple Witch Hair | Bright Flashlights |
| Merlin Stone | Broom Glide | Magic Wand | Wears Spectacles | Orange Pumpkin Wig | Salt Sprinkles |
| Silas Shadow | Shadow Dash | Magic Wand | No Spectacles | Purple Witch Hair | Bright Flashlights |
Clue 1
Place value
The spooky security lock checked the digital numbers on the haunted gate.
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
5000
9000
400
1000
60
1000
500
400
80
T
5000
8000
900
400
1000
2000
900
T
5000
80
30
20
20
70
30
1000
500
400
7000
7000
600
900
900
200
What is the value of the 5 in 85,901?T
What is the value of the 5 in 9,573?P
What is the value of the 2 in 12,947?N
What is the value of the 6 in 4,965?U
What is the value of the 9 in 920?O
What is the value of the 9 in 59,006?H
What is the value of the 8 in 28,125?D
What is the value of the 7 in 7,863?L
What is the value of the 8 in 9,085?C
What is the value of the 3 in 738?A
What is the value of the 2 in 268?K
What is the value of the 4 in 8,475?E
What is the value of the 2 in 525?R
What is the value of the 6 in 654?B
What is the value of the 7 in 371?Y
What is the value of the 1 in 21,558?S
0/16 letters found
Clue 2
Rounding
The bat radar screen only shows numbers rounded 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
1700
3700
200
3000
430
170
3700
T
1700
430
300
170
3000
3700
30
4300
200
700
300
30
3000
2300
200
370
T
1700
90
370
7000
200
3000
90
T
1700
90
7000
7000
Round 1,695 to the nearest hundredT
Round 704 to the nearest hundredD
Round 4,263 to the nearest hundredW
Round 172 to the nearest tenG
Round 221 to the nearest hundredE
Round 7,194 to the nearest thousandL
Round 428 to the nearest tenI
Round 3,709 to the nearest hundredH
Round 27 to the nearest tenO
Round 2,825 to the nearest thousandS
Round 302 to the nearest hundredN
Round 2,347 to the nearest hundredP
Round 367 to the nearest tenC
Round 90 to the nearest tenA
0/14 letters found
Clue 3
Addition
The festival workers tallied up all the carved pumpkins in the main yard.
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
8131
5137
8731
8713
5815
5849
6073
8945
5815
5849
8675
7208
5137
8908
8675
4648
6337
8675
5617
5815
8713
8713
5137
5815
5579
5831
8713
8675
8675
5831
5137
5382
4648
3560 + 4571 =G
3421 + 1716 =A
5093 + 3815 =D
3660 + 5015 =E
3421 + 2916 =H
2665 + 3150 =I
3944 + 3264 =M
3257 + 2322 =N
3231 + 2600 =F
5566 + 3147 =L
5423 + 3308 =R
3941 + 2132 =J
2928 + 2454 =S
2879 + 2738 =V
1818 + 2830 =T
3352 + 2497 =C
4029 + 4916 =U
0/17 letters found
Clue 4
Subtraction
The baker calculated how many spider cupcakes were taken from the counter.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
P
8798
1621
2320
P
8798
2104
1218
1112
1595
1947
2617
7648
7648
6811
1595
2320
1112
6811
7536
2102
8035
1621
6729
2744
6729
1218
6811
2320
3001
6811
1947
1218
12760 - 3962 =P
5113 - 4001 =W
4402 - 2082 =R
6165 - 4544 =U
9565 - 1917 =H
6449 - 3705 =D
5610 - 3506 =L
3321 - 320 =G
3738 - 1791 =T
7446 - 717 =N
9317 - 1781 =S
6603 - 4501 =F
5899 - 3282 =C
11434 - 3399 =O
1434 - 216 =E
5162 - 3567 =I
9830 - 3019 =A
0/17 letters found
Clue 5
Missing addends — the last clue
The candy inspector found a partial tally sheet with one missing number.
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
12 + ___ = 18
28 + ___ = 38
17 + ___ = 18
39 + ___ = 47
7 + ___ = 9
40 + ___ = 45
30 + ___ = 42
13 + ___ = 16
30 + ___ = 39
5 + ___ = 16
29 + ___ = 33
Step 2 — cross out the sentence with each answer
1.The villain glided on a broomstick, then grabbed a heavy candy sack.
2.The villain summoned bats, then shined a glow lantern.
3.The villain glided on a broomstick, then shined a glow lantern.
4.The villain glided on a broomstick, then dropped a spell book.
5.The villain blasted glowing pumpkins, then grabbed a heavy candy sack.
6.The villain floated like a ghost, then gazed into a haunted mirror.
7.The villain glided on a broomstick, then waved a magic wand.
8.The villain floated like a ghost, then shined a glow lantern.
9.The villain blasted glowing pumpkins, then shined a glow lantern.
10.The villain floated like a ghost, then grabbed a heavy candy sack.
11.The villain blasted glowing pumpkins, then waved a magic wand.
12.The villain dashed through shadows, then gazed into a haunted mirror.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Pumpkin Hollow Mystery
Culprit: Victor Frankenstein (Broom Glide · Magic Wand · No Spectacles · Purple Witch Hair · Garlic Juice)
- Clue 1 (Place value): "THE SUSPECT DOES NOT CARRY A SPELL BOOK"What is the value of the 5 in 85,901? = 5000 (T) · What is the value of the 5 in 9,573? = 500 (P) · What is the value of the 2 in 12,947? = 2000 (N) · What is the value of the 6 in 4,965? = 60 (U) · What is the value of the 9 in 920? = 900 (O) · What is the value of the 9 in 59,006? = 9000 (H) · What is the value of the 8 in 28,125? = 8000 (D) · What is the value of the 7 in 7,863? = 7000 (L) · What is the value of the 8 in 9,085? = 80 (C) · What is the value of the 3 in 738? = 30 (A) · What is the value of the 2 in 268? = 200 (K) · What is the value of the 4 in 8,475? = 400 (E) · What is the value of the 2 in 525? = 20 (R) · What is the value of the 6 in 654? = 600 (B) · What is the value of the 7 in 371? = 70 (Y) · What is the value of the 1 in 21,558? = 1000 (S)
- Clue 2 (Rounding): "THE SIGHTING SHOWED NO SPECTACLES AT ALL"Round 1,695 to the nearest hundred = 1700 (T) · Round 704 to the nearest hundred = 700 (D) · Round 4,263 to the nearest hundred = 4300 (W) · Round 172 to the nearest ten = 170 (G) · Round 221 to the nearest hundred = 200 (E) · Round 7,194 to the nearest thousand = 7000 (L) · Round 428 to the nearest ten = 430 (I) · Round 3,709 to the nearest hundred = 3700 (H) · Round 27 to the nearest ten = 30 (O) · Round 2,825 to the nearest thousand = 3000 (S) · Round 302 to the nearest hundred = 300 (N) · Round 2,347 to the nearest hundred = 2300 (P) · Round 367 to the nearest ten = 370 (C) · Round 90 to the nearest ten = 90 (A)
- Clue 3 (Addition): "GARLIC JUICE MADE THE VILLAIN FLEE FAST"3560 + 4571 = 8131 (G) · 3421 + 1716 = 5137 (A) · 5093 + 3815 = 8908 (D) · 3660 + 5015 = 8675 (E) · 3421 + 2916 = 6337 (H) · 2665 + 3150 = 5815 (I) · 3944 + 3264 = 7208 (M) · 3257 + 2322 = 5579 (N) · 3231 + 2600 = 5831 (F) · 5566 + 3147 = 8713 (L) · 5423 + 3308 = 8731 (R) · 3941 + 2132 = 6073 (J) · 2928 + 2454 = 5382 (S) · 2879 + 2738 = 5617 (V) · 1818 + 2830 = 4648 (T) · 3352 + 2497 = 5849 (C) · 4029 + 4916 = 8945 (U)
- Clue 4 (Subtraction): "PURPLE WITCH HAIR WAS FOUND NEAR GATE"12760 - 3962 = 8798 (P) · 5113 - 4001 = 1112 (W) · 4402 - 2082 = 2320 (R) · 6165 - 4544 = 1621 (U) · 9565 - 1917 = 7648 (H) · 6449 - 3705 = 2744 (D) · 5610 - 3506 = 2104 (L) · 3321 - 320 = 3001 (G) · 3738 - 1791 = 1947 (T) · 7446 - 717 = 6729 (N) · 9317 - 1781 = 7536 (S) · 6603 - 4501 = 2102 (F) · 5899 - 3282 = 2617 (C) · 11434 - 3399 = 8035 (O) · 1434 - 216 = 1218 (E) · 5162 - 3567 = 1595 (I) · 9830 - 3019 = 6811 (A)
- Clue 5 (Missing addends): surviving statement (box 7) → Victor Frankenstein12 + ___ = 18 = 6 · 28 + ___ = 38 = 10 · 17 + ___ = 18 = 1 · 39 + ___ = 47 = 8 · 7 + ___ = 9 = 2 · 40 + ___ = 45 = 5 · 30 + ___ = 42 = 12 · 13 + ___ = 16 = 3 · 30 + ___ = 39 = 9 · 5 + ___ = 16 = 11 · 29 + ___ = 33 = 4
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Place value, Rounding, Addition, Subtraction, Missing addends
- Reading level
- grades 3-4
- Theme
- The Great Pumpkin Hollow Mystery — set in Pumpkin Hollow Festival
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects