Math Crackers
🔎 HalloweenGrade 4Reading: grades 1-2MultiplicationRoundingAdditionSubtractionDivision

The Great Halloween Candy Caper

Someone took all the prize treats at the Halloween festival. Detective Sam needs your help to decode clues and catch the Spooky Sneak before the party starts.

Suspects

Possible suspects

Cross off a row as each clue rules it out. On screen, tap a row.

21 of 21 still in play
NameSpooky PowerTrick ItemHandednessDisguise HairSecret Weakness
Autumn AmberGhost FloatPotion SplashLeft HandedGreen FurSilly Songs
Shaggy RogersShadow VanishSpooky HowlLeft HandedPurple LocksSilly Songs
Piper PumpkinShadow VanishSpooky HowlLeft HandedOrange WigBright Flashlight
Jack O LanternPumpkin BlastMonster StompRight HandedGreen FurBright Flashlight
Wendy WitchShadow VanishPotion SplashRight HandedOrange WigBright Flashlight
Frankie SteinBat SwarmSpooky HowlRight HandedGreen FurBright Flashlight
Sabrina SpellBat SwarmGlow WhistleLeft HandedGreen FurGarlic Bread
Ghouly GregPumpkin BlastPotion SplashLeft HandedOrange WigGarlic Bread
Daphne BlakeGhost FloatSpooky HowlLeft HandedOrange WigGarlic Bread
Buffy SummersCandy BeamMonster StompRight HandedOrange WigBright Flashlight
Igor BonesShadow VanishGlow WhistleRight HandedPurple LocksBright Flashlight
Mandy MoonCandy BeamGlow WhistleLeft HandedOrange WigGarlic Bread
Morticia AddamsGhost FloatPotion SplashRight HandedPurple LocksSilly Songs
Casper WhiteCandy BeamCobweb TrapLeft HandedPurple LocksSilly Songs
Broomstick BobShadow VanishSpooky HowlLeft HandedGreen FurSilly Songs
Gomez AddamsCandy BeamCobweb TrapLeft HandedOrange WigGarlic Bread
Bram StokerPumpkin BlastPotion SplashRight HandedPurple LocksBright Flashlight
Sally SkeletonPumpkin BlastSpooky HowlRight HandedGreen FurBright Flashlight
Velma DinkleyShadow VanishCobweb TrapRight HandedOrange WigBright Flashlight
Scooby DooGhost FloatGlow WhistleRight HandedOrange WigGarlic Bread
Elvira DarkCandy BeamMonster StompLeft HandedOrange WigGarlic Bread
Clue 1

Multiplication facts (1-12)

Count the candy bags in each equal row to find the first code.

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
50
9
96
120
64
42
42
2
64
18
81
30
96
72
18
30
T
50
1
72
96
2
49
30
48
32
96
48
T
50
80
2
56
5 × 10 =T
6 × 7 =L
9 × 2 =N
6 × 8 =B
1 × 2 =A
8 × 8 =I
9 × 8 =S
8 × 4 =W
9 × 1 =H
9 × 9 =D
10 × 12 =V
1 × 1 =U
5 × 6 =O
8 × 7 =P
7 × 7 =C
10 × 8 =R
8 × 12 =E
0/17 letters found
Clue 2

Rounding

The spooky bat radar shows approximate numbers rounded to the nearest ten.

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
30
7000
3700
500
3000
3700
290
20
1300
5000
900
3700
2900
130
900
300
300
3700
2900
300
900
T
30
700
900
3000
500
2000
700
T
30
7000
50
3700
5000
T
30
7000
290
3000
2900
Round 28 to the nearest tenT
Round 2,165 to the nearest thousandW
Round 270 to the nearest hundredP
Round 286 to the nearest tenA
Round 3,734 to the nearest hundredE
Round 886 to the nearest hundredO
Round 483 to the nearest hundredS
Round 128 to the nearest tenR
Round 53 to the nearest tenL
Round 701 to the nearest hundredI
Round 2,899 to the nearest hundredD
Round 3,406 to the nearest thousandN
Round 5,388 to the nearest thousandF
Round 1,268 to the nearest hundredY
Round 21 to the nearest tenK
Round 7,197 to the nearest thousandH
0/16 letters found
Clue 3

Addition

Add up all the monster cupcakes on the tables to get 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
5998
7886
8310
9848
2478
5483
5483
6314
2478
3607
5760
6314
3607
6314
2830
6314
3474
8857
5760
4199
4809
8098
6314
5760
5483
2478
7774
8543
5760
8310
6314
8155
1823 + 4175 =T
2104 + 1370 =Y
5814 + 2496 =E
2667 + 5488 =D
1517 + 961 =I
2386 + 1221 =N
4047 + 3727 =C
1433 + 2766 =O
3869 + 2445 =A
4205 + 4652 =F
4314 + 5534 =V
5257 + 2841 =G
1107 + 1723 =W
5050 + 2836 =H
3413 + 5130 =B
2773 + 2036 =M
3782 + 1701 =L
3637 + 2123 =R
0/18 letters found
Clue 4

Subtraction

Take away the spilled potion jars from the total count to find the leftover code.

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
1274
1581
5638
1004
5643
6953
4803
4697
5643
3918
2403
1581
5638
1004
2562
3918
4803
6953
1581
6953
6215
O
1274
6427
1004
2562
5638
2403
2403
1190
6953
3918
3238
6953
1004
6953
4097 - 2823 =O
8714 - 4796 =S
8708 - 2281 =U
6998 - 4595 =T
4237 - 3047 =H
10109 - 3894 =F
2675 - 1671 =N
2821 - 1240 =R
2888 - 326 =D
5323 - 626 =I
7927 - 2284 =G
11926 - 4973 =E
5615 - 2377 =C
5813 - 175 =A
5421 - 618 =W
0/15 letters found
Clue 5

Division facts (1-12) — the last clue

Share the glow sticks equally into party baskets to unlock the final secret.

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
9 ÷ 1 = ?
66 ÷ 11 = ?
55 ÷ 11 = ?
21 ÷ 7 = ?
10 ÷ 1 = ?
32 ÷ 4 = ?
55 ÷ 5 = ?
77 ÷ 11 = ?
40 ÷ 10 = ?
16 ÷ 8 = ?
36 ÷ 3 = ?
Step 2 — cross out the sentence with each answer
1.The villain floated like a ghost, then made a spooky howl.
2.The villain vanished into shadow, then blew a glow whistle.
3.The villain cast a pumpkin blast, then did a monster stomp.
4.The villain cast a pumpkin blast, then blew a glow whistle.
5.The villain shot a candy beam, then blew a glow whistle.
6.The villain shot a candy beam, then did a monster stomp.
7.The villain vanished into shadow, then did a monster stomp.
8.The villain cast a pumpkin blast, then set a cobweb trap.
9.The villain cast a pumpkin blast, then made a potion splash.
10.The villain summoned a bat swarm, then made a spooky howl.
11.The villain summoned a bat swarm, then did a monster stomp.
12.The villain floated like a ghost, then did a monster stomp.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 4 math
Math topics
Multiplication, Rounding, Addition, Subtraction, Division
Reading level
grades 1-2
Theme
The Great Halloween Candy Caper — set in Pumpkin Hollow Festival
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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