Math Crackers
🐱 Cats, halloweenGrade 4Reading: grades 3-4Place valueAdditionSubtractionRoundingDivision

The Case of the Missing Catnip Treats

The Halloween Pumpkin Festival at Whisker Hollow was going great until the giant batch of glowing catnip treats vanished! Detective Whiskers needs your help to decode clues and find the sneaky feline 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
NameMagic TrickCostume AccessoryPaw PreferenceFur ColorDistraction
Cleo MoonPumpkin GlideBat WingsLeft PawsCalico FurCrinkly Paper
Simba NightGhost WhistlePumpkin MaskRight PawsBlack FurCrinkly Paper
Barnaby WhiskersShadow LeapGhost CapeRight PawsCalico FurLaser Pointer
Leo ShadowPumpkin GlideWitch HatRight PawsBlack FurCrinkly Paper
Felix BlackwoodGlow StarePumpkin MaskRight PawsCalico FurCrinkly Paper
Hazel ClawShadow LeapPumpkin MaskLeft PawsOrange FurCrinkly Paper
Mochi DuskGlow StareWitch HatLeft PawsBlack FurSqueaky Mouse
Shadow PawsShadow LeapWitch HatLeft PawsCalico FurSqueaky Mouse
Ziggy BatPumpkin GlideGhost CapeRight PawsCalico FurLaser Pointer
Archie FangShadow LeapGhost CapeLeft PawsOrange FurCrinkly Paper
Ruby SpookShadow LeapGhost CapeLeft PawsOrange FurSqueaky Mouse
Otis BrambleGhost WhistleGhost CapeRight PawsCalico FurCrinkly Paper
Pepper FogPumpkin GlideBat WingsLeft PawsOrange FurCrinkly Paper
Oliver PumpkinBat FlutterPumpkin MaskRight PawsCalico FurCrinkly Paper
Gizmo GhoulPumpkin GlideGhost CapeRight PawsCalico FurCrinkly Paper
Bella LanternGhost WhistlePumpkin MaskLeft PawsCalico FurCrinkly Paper
Nala MidnightBat FlutterSpider CapRight PawsCalico FurCrinkly Paper
Luna CobwebShadow LeapWitch HatLeft PawsBlack FurCrinkly Paper
Penny CauldronBat FlutterBat WingsRight PawsOrange FurSqueaky Mouse
Chloe PhantomGlow StareGhost CapeLeft PawsCalico FurSqueaky Mouse
Jasper BroomShadow LeapSpider CapRight PawsCalico FurLaser Pointer
Clue 1

Place value

A code wheel on the bakery door uses digit place values to unlock clue one.

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
700
80
600
20
2000
600
90
500
1000
300
50
60
60
90
50
2000
2000
600
300
600
400
8000
600
90
400
20
90
20
7000
50
900
600
400
3000
90
7000
What is the value of the 7 in 761?T
What is the value of the 9 in 984?D
What is the value of the 9 in 5,392?A
What is the value of the 2 in 4,620?S
What is the value of the 5 in 4,566?K
What is the value of the 6 in 9,069?L
What is the value of the 8 in 7,986?H
What is the value of the 1 in 1,808?Y
What is the value of the 2 in 2,069?N
What is the value of the 4 in 479?R
What is the value of the 6 in 633?E
What is the value of the 8 in 8,761?W
What is the value of the 5 in 1,356?I
What is the value of the 3 in 362?V
What is the value of the 7 in 87,852?P
What is the value of the 3 in 3,967?C
0/16 letters found
Clue 2

Addition

Detective Whiskers totals up all dropped treats along the spooky trail to find clue two.

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
2291
2988
2803
4156
9544
8339
8339
8359
9544
3554
3761
3554
8339
8081
3011
T
2291
7402
9544
5294
2803
3011
2388
9544
T
2291
2988
7402
9544
8490
2988
T
2291
8204
8359
2388
3011
921 + 1370 =T
4182 + 4157 =L
3274 + 2020 =K
1339 + 1649 =H
2299 + 1857 =V
3134 + 6410 =I
1878 + 1133 =S
3999 + 3403 =R
1252 + 1551 =E
5582 + 2777 =A
1159 + 2395 =N
1678 + 2083 =O
1461 + 927 =W
4793 + 3411 =P
3459 + 4622 =Y
4143 + 4347 =G
0/16 letters found
Clue 3

Subtraction

Comparing the pumpkin count before and after the commotion reveals clue three.

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
1136
5080
3417
5761
4150
6476
T
1136
5761
T
1136
4933
4952
5761
4589
5884
5761
5080
3417
6779
2421
6476
T
1136
4150
4589
3417
6779
8302
1642
8402
4952
6476
4952
7302
4589
3892 - 2756 =T
5957 - 1005 =P
9856 - 1454 =Y
10104 - 1802 =K
5381 - 1964 =I
7372 - 4951 =G
10275 - 2973 =E
10456 - 4695 =S
6463 - 1383 =H
5371 - 1221 =C
8274 - 1495 =N
5042 - 109 =O
5746 - 4104 =L
9584 - 3108 =A
8753 - 2869 =U
5428 - 839 =R
0/16 letters found
Clue 4

Rounding

The automated scanner on the festival scoreboard rounds up fur counts to uncover clue four.

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
2000
430
70
7000
900
70
3700
70
430
90
7000
90
7000
T
2000
5000
90
3700
20
3000
50
900
90
700
230
900
3000
50
2300
5000
Round 2,463 to the nearest thousandT
Round 46 to the nearest tenF
Round 73 to the nearest tenE
Round 17 to the nearest tenD
Round 432 to the nearest tenH
Round 91 to the nearest tenA
Round 919 to the nearest hundredC
Round 6,613 to the nearest thousandS
Round 748 to the nearest hundredL
Round 2,302 to the nearest hundredU
Round 3,730 to the nearest hundredN
Round 2,538 to the nearest thousandO
Round 233 to the nearest tenI
Round 4,970 to the nearest thousandR
0/14 letters found
Clue 5

Division facts (1-12) — the last clue

Splitting the remaining catnip treats equally among the helper kittens unveils clue five.

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 ÷ 9 = ?
25 ÷ 5 = ?
44 ÷ 4 = ?
44 ÷ 11 = ?
14 ÷ 2 = ?
80 ÷ 8 = ?
24 ÷ 2 = ?
99 ÷ 11 = ?
54 ÷ 9 = ?
24 ÷ 12 = ?
96 ÷ 12 = ?
Step 2 — cross out the sentence with each answer
1.The villain stared with a green glow, then put on a pumpkin mask.
2.The villain blew a ghost whistle, then fixed a spider cap.
3.The villain glided on a pumpkin, then swished a ghost cape.
4.The villain blew a ghost whistle, then put on a pumpkin mask.
5.The villain fluttered like a bat, then put on a pumpkin mask.
6.The villain glided on a pumpkin, then flapped bat wings.
7.The villain blew a ghost whistle, then adjusted a witch hat.
8.The villain fluttered like a bat, then flapped bat wings.
9.The villain fluttered like a bat, then fixed a spider cap.
10.The villain glided on a pumpkin, then adjusted a witch hat.
11.The villain blew a ghost whistle, then swished a ghost cape.
12.The villain leaped through shadows, then fixed a spider cap.
Solve it

Name the culprit

Choose the one suspect left standing.

About this mystery

Grade level
Grade 4 math
Math topics
Place value, Addition, Subtraction, Rounding, Division
Reading level
grades 3-4
Theme
The Case of the Missing Catnip Treats — set in Whisker Hollow Pumpkin Patch
Format
Interactive online & printable worksheet with answer key
Solution
One unique, verified culprit among 21 suspects

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