🔎 HalloweenGrade 4Reading: grades 3-4AdditionSubtractionPlace valueRoundingMissing addends

The Great Pumpkin Patch Prank

Someone scrambled the giant pumpkins at Glow Valley right before the big Halloween contest! Solve the clues to reveal 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 Magic	Spooky Gear	Dominant Hand	Wig Color	Trick Trap
Tarot Tim	Candy Blast	Spider Net	Right Handed	Purple Hair	Bright Flashlight
Grim Reaper	Pumpkin Bomb	Spooky Whistle	Right Handed	Green Hair	Garlic Spray
Morticia Addams	Ghost Float	Fog Machine	Right Handed	Purple Hair	Bright Flashlight
Buster Ghost	Pumpkin Bomb	Fog Machine	Right Handed	Green Hair	Garlic Spray
Salem Cat	Bat Swarm	Spider Net	Right Handed	Green Hair	Loud Alarm
Bram Stoker	Candy Blast	Skeleton Dance	Left Handed	Orange Hair	Bright Flashlight
Sabrina Spell	Shadow Cloak	Fog Machine	Right Handed	Orange Hair	Garlic Spray
Mary Shelley	Candy Blast	Skeleton Dance	Right Handed	Green Hair	Garlic Spray
Draco Moon	Ghost Float	Spooky Whistle	Left Handed	Green Hair	Garlic Spray
Pip Pumpkin	Pumpkin Bomb	Spider Net	Right Handed	Orange Hair	Garlic Spray
Wednesday Fry	Bat Swarm	Fog Machine	Left Handed	Purple Hair	Loud Alarm
Pugsley Peak	Candy Blast	Spider Net	Left Handed	Purple Hair	Bright Flashlight
Fester Spark	Ghost Float	Spider Net	Right Handed	Purple Hair	Garlic Spray
Jack Lantern	Shadow Cloak	Skeleton Dance	Right Handed	Orange Hair	Bright Flashlight
Count Vlad	Bat Swarm	Glowing Lantern	Right Handed	Purple Hair	Bright Flashlight
Gorgon Gale	Shadow Cloak	Spooky Whistle	Right Handed	Green Hair	Garlic Spray
Wendy Witch	Ghost Float	Spooky Whistle	Right Handed	Purple Hair	Loud Alarm
Frankie Stein	Pumpkin Bomb	Fog Machine	Left Handed	Orange Hair	Garlic Spray
Mummy Manny	Shadow Cloak	Fog Machine	Left Handed	Orange Hair	Bright Flashlight
Elvira Shade	Shadow Cloak	Fog Machine	Left Handed	Purple Hair	Bright Flashlight
Igor Crunch	Ghost Float	Glowing Lantern	Right Handed	Green Hair	Garlic Spray

Clue 1

Addition

Count up the total wrapped candies collected across the spooky barn to unlock 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.

6487

4520

5519

6405

2366

5625

7812

6095

4191

6487

5519

2366

7862

4725

5519

4191

7812

4725

6487

9779

4191

5519

5625

4243

4725

4949

5479

5625

4818

4520

5534

7812

5519

2700 + 3787 =T

2473 + 3932 =P

1419 + 3101 =H

3558 + 2537 =K

1274 + 2969 =F

3356 + 2123 =M

934 + 1432 =R

2528 + 2197 =O

2049 + 2900 =G

1860 + 2331 =S

1881 + 2937 =C

2622 + 3003 =A

3485 + 4327 =N

3042 + 2492 =I

5179 + 4600 =U

2879 + 2640 =E

4612 + 3250 =D

0/17 letters found

Clue 2

Subtraction

Subtract the broken glow sticks from the total batch 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.

3267

5906

2407

1076

8631

5167

4966

3267

4966

8877

5906

5106

8694

2407

8694

4966

1076

7039

8631

7039

5708

5906

8109

4966

5906

1076

8109

8631

4966

5708

8631

4881 - 1614 =W

7334 - 1626 =V

9010 - 3843 =S

2749 - 342 =T

10359 - 1482 =R

11704 - 3595 =L

12885 - 4254 =E

9651 - 2612 =D

9434 - 740 =H

8163 - 2257 =I

8572 - 3466 =G

2119 - 1043 =N

5290 - 324 =A

0/13 letters found

Clue 3

Place value

Look closely at the hundred digit on the glowing pumpkin counter to discover a hint.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

8000

900

9000

300

200

900

100

200

6000

7000

6000

800

9000

900

9000

400

500

9000

300

What is the value of the 8 in 8,071?G

What is the value of the 3 in 6,931?S

What is the value of the 8 in 821?V

What is the value of the 8 in 1,186?Y

What is the value of the 7 in 474?T

What is the value of the 9 in 5,988?A

What is the value of the 2 in 7,218?P

What is the value of the 3 in 324?C

What is the value of the 1 in 8,144?O

What is the value of the 4 in 428?N

What is the value of the 1 in 2,318?Q

What is the value of the 6 in 163?L

What is the value of the 4 in 745?K

What is the value of the 6 in 6,210?E

What is the value of the 7 in 7,419?H

What is the value of the 2 in 9,424?D

What is the value of the 5 in 594?U

What is the value of the 9 in 29,260?I

What is the value of the 9 in 3,795?R

0/19 letters found

Clue 4

Rounding

The spooky score display rounds all points to the nearest ten to give this readout.

Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.

230

300

110

1300

9000

2300

1700

9000

3000

130

290

370

110

1100

9000

1300

300

3000

300

110

300

Round 234 to the nearest tenG

Round 2,858 to the nearest thousandS

Round 373 to the nearest tenU

Round 108 to the nearest tenN

Round 2,335 to the nearest hundredI

Round 1,060 to the nearest hundredD

Round 17 to the nearest tenC

Round 291 to the nearest tenO

Round 1,692 to the nearest hundredW

Round 133 to the nearest tenF

Round 52 to the nearest tenT

Round 253 to the nearest hundredE

Round 70 to the nearest tenR

Round 8,910 to the nearest thousandA

Round 1,334 to the nearest hundredH

0/15 letters found

Clue 5

Missing addends — the last clue

Find the missing number of decorative bats needed to reach the full goal.

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

40 + ___ = 49

15 + ___ = 20

29 + ___ = 40

9 + ___ = 16

39 + ___ = 49

21 + ___ = 29

29 + ___ = 30

1 + ___ = 3

17 + ___ = 21

15 + ___ = 27

5 + ___ = 8

Step 2 — cross out the sentence with each answer

1.The villain summoned a bat swarm, then blew a spooky whistle.

2.The villain summoned a bat swarm, then did a skeleton dance.

3.The villain vanished into a shadow cloak, then trapped the path in a spider net.

4.The villain summoned a bat swarm, then lit a glowing lantern.

5.The villain blasted sweet candy everywhere, then did a skeleton dance.

6.The villain floated like a ghost, then lit a glowing lantern.

7.The villain vanished into a shadow cloak, then turned on a fog machine.

8.The villain threw a pumpkin bomb, then did a skeleton dance.

9.The villain vanished into a shadow cloak, then blew a spooky whistle.

10.The villain floated like a ghost, then did a skeleton dance.

11.The villain threw a pumpkin bomb, then blew a spooky whistle.

12.The villain threw a pumpkin bomb, then trapped the path in a spider net.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Great Pumpkin Patch Prank

Culprit: Igor Crunch (Ghost Float · Glowing Lantern · Right Handed · Green Hair · Garlic Spray)

Clue 1 (Addition): "THE PRANKSTER DOES NOT USE A FOG MACHINE"
2700 + 3787 = 6487 (T) · 2473 + 3932 = 6405 (P) · 1419 + 3101 = 4520 (H) · 3558 + 2537 = 6095 (K) · 1274 + 2969 = 4243 (F) · 3356 + 2123 = 5479 (M) · 934 + 1432 = 2366 (R) · 2528 + 2197 = 4725 (O) · 2049 + 2900 = 4949 (G) · 1860 + 2331 = 4191 (S) · 1881 + 2937 = 4818 (C) · 2622 + 3003 = 5625 (A) · 3485 + 4327 = 7812 (N) · 3042 + 2492 = 5534 (I) · 5179 + 4600 = 9779 (U) · 2879 + 2640 = 5519 (E) · 4612 + 3250 = 7862 (D)
Clue 2 (Subtraction): "WITNESS SAW A RIGHT HANDED VILLAIN LEAVE"
4881 - 1614 = 3267 (W) · 7334 - 1626 = 5708 (V) · 9010 - 3843 = 5167 (S) · 2749 - 342 = 2407 (T) · 10359 - 1482 = 8877 (R) · 11704 - 3595 = 8109 (L) · 12885 - 4254 = 8631 (E) · 9651 - 2612 = 7039 (D) · 9434 - 740 = 8694 (H) · 8163 - 2257 = 5906 (I) · 8572 - 3466 = 5106 (G) · 2119 - 1043 = 1076 (N) · 5290 - 324 = 4966 (A)
Clue 3 (Place value): "GARLIC SPRAY STOPPED THE VILLAIN QUICKLY"
What is the value of the 8 in 8,071? = 8000 (G) · What is the value of the 3 in 6,931? = 30 (S) · What is the value of the 8 in 821? = 800 (V) · What is the value of the 8 in 1,186? = 80 (Y) · What is the value of the 7 in 474? = 70 (T) · What is the value of the 9 in 5,988? = 900 (A) · What is the value of the 2 in 7,218? = 200 (P) · What is the value of the 3 in 324? = 300 (C) · What is the value of the 1 in 8,144? = 100 (O) · What is the value of the 4 in 428? = 400 (N) · What is the value of the 1 in 2,318? = 10 (Q) · What is the value of the 6 in 163? = 60 (L) · What is the value of the 4 in 745? = 40 (K) · What is the value of the 6 in 6,210? = 6000 (E) · What is the value of the 7 in 7,419? = 7000 (H) · What is the value of the 2 in 9,424? = 20 (D) · What is the value of the 5 in 594? = 500 (U) · What is the value of the 9 in 29,260? = 9000 (I) · What is the value of the 9 in 3,795? = 90 (R)
Clue 4 (Rounding): "GREEN HAIR WAS FOUND AT THE SCENE"
Round 234 to the nearest ten = 230 (G) · Round 2,858 to the nearest thousand = 3000 (S) · Round 373 to the nearest ten = 370 (U) · Round 108 to the nearest ten = 110 (N) · Round 2,335 to the nearest hundred = 2300 (I) · Round 1,060 to the nearest hundred = 1100 (D) · Round 17 to the nearest ten = 20 (C) · Round 291 to the nearest ten = 290 (O) · Round 1,692 to the nearest hundred = 1700 (W) · Round 133 to the nearest ten = 130 (F) · Round 52 to the nearest ten = 50 (T) · Round 253 to the nearest hundred = 300 (E) · Round 70 to the nearest ten = 70 (R) · Round 8,910 to the nearest thousand = 9000 (A) · Round 1,334 to the nearest hundred = 1300 (H)
Clue 5 (Missing addends): surviving statement (box 6) → Igor Crunch
40 + ___ = 49 = 9 · 15 + ___ = 20 = 5 · 29 + ___ = 40 = 11 · 9 + ___ = 16 = 7 · 39 + ___ = 49 = 10 · 21 + ___ = 29 = 8 · 29 + ___ = 30 = 1 · 1 + ___ = 3 = 2 · 17 + ___ = 21 = 4 · 15 + ___ = 27 = 12 · 5 + ___ = 8 = 3

About this mystery

Grade level: Grade 4 math
Math topics: Addition, Subtraction, Place value, Rounding, Missing addends
Reading level: grades 3-4
Theme: The Great Pumpkin Patch Prank — set in Glow Valley Pumpkin Farm
Format: Interactive online & printable worksheet with answer key
Solution: One unique, verified culprit among 21 suspects

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