🐱 CatsGrade 4Reading: grades 3-4RoundingAdditionSubtractionMultiplicationDivision

The Case of the Catnip Caper

The famous Golden Yarn Ball has vanished from the Whisker City Museum! A sneaky cat burglar slipped past the lasers. Detective, we need your help to crack the clues, solve the math puzzles, and find 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	Favorite Toy	Super Skill	Collar Color	Fur Coat	Secret Weapon
Socks	Laser Pointer	High Jumper	Red Collar	Sleek Black	Tuna Treats
Mittens	Yarn Ball	Super Climber	Red Collar	Orange Tabby	Scratches
Buster	Squeaky Mouse	Wall Runner	Blue Collar	Calico Patches	Tuna Treats
Sylvester	Yarn Ball	Wall Runner	Red Collar	Sleek Black	Scratches
Chloe	Squeaky Mouse	High Jumper	Red Collar	Orange Tabby	Tuna Treats
Sophie	Feather Wand	Super Climber	Blue Collar	Calico Patches	Warm Sunbeam
Garfield	Laser Pointer	Night Vision	Red Collar	Orange Tabby	Scratches
Ziggy	Catnip Mouse	Wall Runner	Red Collar	Calico Patches	Warm Sunbeam
Meowth	Yarn Ball	Night Vision	Red Collar	Sleek Black	Scratches
Oliver	Feather Wand	Wall Runner	Blue Collar	Orange Tabby	Tuna Treats
Fluffy	Feather Wand	Super Climber	Red Collar	Sleek Black	Scratches
Nala	Laser Pointer	Wall Runner	Red Collar	Orange Tabby	Tuna Treats
Cleo	Squeaky Mouse	Wall Runner	Blue Collar	Calico Patches	Scratches
Milo	Catnip Mouse	Night Vision	Blue Collar	Orange Tabby	Tuna Treats
Grumpy Cat	Squeaky Mouse	Super Climber	Blue Collar	Orange Tabby	Scratches
Shadow	Catnip Mouse	High Jumper	Blue Collar	Orange Tabby	Tuna Treats
Felix	Feather Wand	High Jumper	Red Collar	Sleek Black	Tuna Treats
Luna	Squeaky Mouse	High Jumper	Blue Collar	Sleek Black	Tuna Treats
Tom	Yarn Ball	Super Climber	Blue Collar	Orange Tabby	Tuna Treats
Simba	Laser Pointer	High Jumper	Blue Collar	Orange Tabby	Tuna Treats
Smokey	Squeaky Mouse	Super Climber	Red Collar	Sleek Black	Warm Sunbeam

Clue 1

Rounding

We found a digital collar tracker that only shows rounded distances to the suspect's location.

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

430

4300

9000

3700

4300

300

5000

430

700

4300

500

1300

200

4300

9000

3700

200

430

300

230

4300

3700

700

430

230

700

9000

700

200

3700

Round 428 to the nearest tenT

Round 94 to the nearest tenY

Round 3,698 to the nearest hundredN

Round 227 to the nearest tenV

Round 1,252 to the nearest hundredD

Round 247 to the nearest hundredO

Round 8,848 to the nearest thousandS

Round 4,971 to the nearest thousandK

Round 495 to the nearest hundredF

Round 68 to the nearest tenH

Round 4,338 to the nearest hundredE

Round 676 to the nearest hundredI

Round 331 to the nearest hundredA

Round 21 to the nearest tenG

0/14 letters found

Clue 2

Addition

We counted all the spilled kibble piles to map out the direction the thief ran.

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

5974

4252

2021

4477

4662

6308

3195

5903

8615

6308

3779

6308

4812

6086

2021

3779

8615

4477

5903

4662

2021

5342

4812

5903

8615

6308

4013 + 1961 =T

1882 + 1313 =G

3064 + 1413 =B

993 + 1028 =E

1532 + 2247 =D

2384 + 2958 =C

1422 + 2830 =H

4600 + 4015 =A

2339 + 3564 =L

2793 + 3293 =P

1727 + 3085 =O

3030 + 3278 =R

2223 + 2439 =U

0/13 letters found

Clue 3

Subtraction

We measured the missing fish from the pantry to find out how many were taken.

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

7162

2712

6809

2466

7031

7162

3437

8158

6539

7031

6539

3437

7031

7807

7487

7162

4078

4625

6768

4078

4618

7162

2388

4341

7031

7162

4618

6809

7031

7162

7487

10262 - 3100 =T

7060 - 2435 =P

8073 - 4636 =W

8969 - 2160 =E

8916 - 4298 =R

10226 - 3458 =F

8656 - 4315 =N

11395 - 3588 =Y

10290 - 3751 =L

8286 - 4208 =O

5252 - 2540 =H

3489 - 1023 =C

9138 - 2107 =A

3681 - 1293 =U

11590 - 4103 =S

8633 - 475 =I

0/16 letters found

Clue 4

Multiplication facts (1-12)

We saw several neat rows of tiny muddy paw prints left on the museum floor.

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

144

110

5 × 10 =T

12 × 12 =V

3 × 1 =B

9 × 1 =I

5 × 5 =R

4 × 1 =H

11 × 9 =A

11 × 2 =G

2 × 1 =C

7 × 12 =E

6 × 7 =D

2 × 7 =Y

11 × 10 =U

7 × 7 =O

8 × 11 =F

8 × 7 =N

0/16 letters found

Clue 5

Division facts (1-12) — the last clue

We had to share the catnip toys equally among the guard dogs to keep them happy.

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

16 ÷ 8 = ?

35 ÷ 7 = ?

36 ÷ 12 = ?

10 ÷ 10 = ?

45 ÷ 5 = ?

90 ÷ 9 = ?

120 ÷ 10 = ?

55 ÷ 5 = ?

72 ÷ 12 = ?

32 ÷ 8 = ?

21 ÷ 3 = ?

Step 2 — cross out the sentence with each answer

1.The villain chews the catnip mouse, then spots the exits in the dark.

2.The villain pounces on the laser pointer, then leaps high into the air.

3.The villain rolls the yarn ball, then climbs up the curtains.

4.The villain bats the feather wand, then leaps high into the air.

5.The villain chews the catnip mouse, then leaps high into the air.

6.The villain chews the catnip mouse, then climbs up the curtains.

7.The villain rolls the yarn ball, then dashes along the high walls.

8.The villain bats the feather wand, then dashes along the high walls.

9.The villain pounces on the laser pointer, then dashes along the high walls.

10.The villain rolls the yarn ball, then leaps high into the air.

11.The villain bats the feather wand, then sneaks by with quiet paws.

12.The villain bats the feather wand, then spots the exits in the dark.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Case of the Catnip Caper

Culprit: Oliver (Feather Wand · Wall Runner · Blue Collar · Orange Tabby · Tuna Treats)

Clue 1 (Rounding): "THE SNEAKY THIEF DOES NOT HAVE NIGHT VISION"
Round 428 to the nearest ten = 430 (T) · Round 94 to the nearest ten = 90 (Y) · Round 3,698 to the nearest hundred = 3700 (N) · Round 227 to the nearest ten = 230 (V) · Round 1,252 to the nearest hundred = 1300 (D) · Round 247 to the nearest hundred = 200 (O) · Round 8,848 to the nearest thousand = 9000 (S) · Round 4,971 to the nearest thousand = 5000 (K) · Round 495 to the nearest hundred = 500 (F) · Round 68 to the nearest ten = 70 (H) · Round 4,338 to the nearest hundred = 4300 (E) · Round 676 to the nearest hundred = 700 (I) · Round 331 to the nearest hundred = 300 (A) · Round 21 to the nearest ten = 20 (G)
Clue 2 (Addition): "THE BURGLAR DROPPED A BLUE COLLAR"
4013 + 1961 = 5974 (T) · 1882 + 1313 = 3195 (G) · 3064 + 1413 = 4477 (B) · 993 + 1028 = 2021 (E) · 1532 + 2247 = 3779 (D) · 2384 + 2958 = 5342 (C) · 1422 + 2830 = 4252 (H) · 4600 + 4015 = 8615 (A) · 2339 + 3564 = 5903 (L) · 2793 + 3293 = 6086 (P) · 1727 + 3085 = 4812 (O) · 3030 + 3278 = 6308 (R) · 2223 + 2439 = 4662 (U)
Clue 3 (Subtraction): "THE CAT WILL ALWAYS STOP FOR TUNA TREATS"
10262 - 3100 = 7162 (T) · 7060 - 2435 = 4625 (P) · 8073 - 4636 = 3437 (W) · 8969 - 2160 = 6809 (E) · 8916 - 4298 = 4618 (R) · 10226 - 3458 = 6768 (F) · 8656 - 4315 = 4341 (N) · 11395 - 3588 = 7807 (Y) · 10290 - 3751 = 6539 (L) · 8286 - 4208 = 4078 (O) · 5252 - 2540 = 2712 (H) · 3489 - 1023 = 2466 (C) · 9138 - 2107 = 7031 (A) · 3681 - 1293 = 2388 (U) · 11590 - 4103 = 7487 (S) · 8633 - 475 = 8158 (I)
Clue 4 (Multiplication facts (1-12)): "THE DETECTIVE FOUND ORANGE TABBY FUR"
5 × 10 = 50 (T) · 12 × 12 = 144 (V) · 3 × 1 = 3 (B) · 9 × 1 = 9 (I) · 5 × 5 = 25 (R) · 4 × 1 = 4 (H) · 11 × 9 = 99 (A) · 11 × 2 = 22 (G) · 2 × 1 = 2 (C) · 7 × 12 = 84 (E) · 6 × 7 = 42 (D) · 2 × 7 = 14 (Y) · 11 × 10 = 110 (U) · 7 × 7 = 49 (O) · 8 × 11 = 88 (F) · 8 × 7 = 56 (N)
Clue 5 (Division facts (1-12)): surviving statement (box 8) → Oliver
16 ÷ 8 = 2 · 35 ÷ 7 = 5 · 36 ÷ 12 = 3 · 10 ÷ 10 = 1 · 45 ÷ 5 = 9 · 90 ÷ 9 = 10 · 120 ÷ 10 = 12 · 55 ÷ 5 = 11 · 72 ÷ 12 = 6 · 32 ÷ 8 = 4 · 21 ÷ 3 = 7

About this mystery

Grade level: Grade 4 math
Math topics: Rounding, Addition, Subtraction, Multiplication, Division
Reading level: grades 3-4
Theme: The Case of the Catnip Caper — set in Whisker City Museum
Format: Interactive online & printable worksheet with answer key
Solution: One unique, verified culprit among 21 suspects

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