🐱 Cats, MinecraftGrade 4Reading: grades 3-4RoundingAdditionSubtractionMultiplicationDivision

The Mystery of the Diamond Salmon

Someone snuck into the Crafty Paw Vault and snatched the legendary Diamond Salmon! Detective Whiskers needs your math skills to decode clues and catch 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	Main Gear	Special Item	Dominant Paw	Fur Style	Big Fear
Oliver	Ender Pearl	Fish Bucket	Left Pawed	Calico Patch	Creeper Hiss
Luna	Diamond Pickaxe	Catnip Potion	Left Pawed	Calico Patch	Squeaky Mouse
Stampy	Ender Pearl	Yarn Bomb	Left Pawed	Orange Tabby	Squeaky Mouse
Penny	Slime Boots	Yarn Bomb	Right Pawed	Black Tuxedo	Creeper Hiss
Redstone	Golden Sword	Milk Bucket	Right Pawed	Black Tuxedo	Water Bucket
Felix	Golden Sword	Milk Bucket	Left Pawed	Orange Tabby	Squeaky Mouse
Socks	Slime Boots	Feather Wand	Left Pawed	Orange Tabby	Squeaky Mouse
DanTDM	Slime Boots	Fish Bucket	Right Pawed	Orange Tabby	Squeaky Mouse
Tabitha	Ender Pearl	Yarn Bomb	Right Pawed	Black Tuxedo	Squeaky Mouse
Jasper	Redstone Spark	Fish Bucket	Left Pawed	Orange Tabby	Creeper Hiss
Cleo	Diamond Pickaxe	Catnip Potion	Right Pawed	Black Tuxedo	Squeaky Mouse
Smokey	Diamond Pickaxe	Milk Bucket	Left Pawed	Orange Tabby	Creeper Hiss
Ziggy	Golden Sword	Catnip Potion	Left Pawed	Orange Tabby	Squeaky Mouse
Cobble	Diamond Pickaxe	Catnip Potion	Left Pawed	Orange Tabby	Creeper Hiss
Pumpkin	Redstone Spark	Yarn Bomb	Left Pawed	Orange Tabby	Squeaky Mouse
Hazel	Slime Boots	Catnip Potion	Left Pawed	Black Tuxedo	Water Bucket
Pixel	Slime Boots	Catnip Potion	Left Pawed	Calico Patch	Creeper Hiss
Steve	Ender Pearl	Yarn Bomb	Left Pawed	Black Tuxedo	Squeaky Mouse
Milo	Ender Pearl	Catnip Potion	Right Pawed	Orange Tabby	Creeper Hiss
Mittens	Slime Boots	Milk Bucket	Left Pawed	Calico Patch	Creeper Hiss
Whiskers	Ender Pearl	Catnip Potion	Left Pawed	Calico Patch	Water Bucket

Clue 1

Rounding

The pixel scoreboard only displays rounded numbers, so Detective Whiskers must round to read the 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.

1300

130

2300

900

1100

2000

2900

300

1100

2900

1300

5000

300

900

290

900

1300

130

7000

500

900

1100

2000

Round 1,313 to the nearest hundredT

Round 4,618 to the nearest thousandU

Round 51 to the nearest tenL

Round 6,831 to the nearest thousandR

Round 293 to the nearest tenF

Round 905 to the nearest hundredA

Round 2,323 to the nearest hundredV

Round 1,609 to the nearest thousandD

Round 131 to the nearest tenH

Round 33 to the nearest tenI

Round 291 to the nearest hundredS

Round 489 to the nearest hundredW

Round 2,909 to the nearest hundredO

Round 1,141 to the nearest hundredN

Round 74 to the nearest tenE

0/15 letters found

Clue 2

Addition

To count the extra fish treats collected in the storehouse, the squad tallies the total blocks.

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

8390

2773

2562

4686

3222

2480

9567

3222

7856

6053

7538

2562

4459

8390

2773

2562

3222

5732

2480

2562

6265

8390

8509

9567

8116

8390

9545

8482

3222

7856

2562

3958 + 4432 =T

3927 + 2338 =F

3104 + 6463 =A

3225 + 5257 =M

2628 + 5488 =W

1692 + 1530 =I

4089 + 1964 =U

1567 + 2892 =D

3351 + 5158 =P

1112 + 1450 =E

1153 + 1327 =L

1001 + 1772 =H

1447 + 3239 =V

3969 + 1763 =R

4793 + 3063 =N

3656 + 3882 =S

4251 + 5294 =O

0/17 letters found

Clue 3

Subtraction

Comparing the mined blocks before and after the raid reveals how many were stolen.

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

6270

1152

4755

1445

1009

1445

7859

4755

4951

6270

7859

3461

8706

1247

4951

4374

4755

7985

3461

6270

3461

1445

2659

1009

4755

3461

4374

4922

5006

5792

1009

1445

4755

8045 - 1775 =T

7401 - 2395 =M

3600 - 2155 =S

3887 - 426 =A

11547 - 3688 =P

4653 - 279 =K

10643 - 2658 =D

2811 - 1564 =I

8678 - 3727 =C

9455 - 4700 =E

9871 - 4079 =O

7066 - 2144 =Y

13565 - 4859 =N

2826 - 1817 =U

3591 - 932 =Q

5513 - 4361 =H

0/16 letters found

Clue 4

Multiplication facts (1-12)

The guard cats check rows of chest slots to calculate the total stolen loot.

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

110

108

6 × 5 =B

10 × 4 =F

10 × 11 =R

11 × 1 =Y

11 × 6 =S

5 × 1 =A

2 × 2 =G

4 × 11 =O

12 × 9 =D

12 × 8 =C

1 × 7 =W

4 × 4 =E

2 × 3 =I

9 × 7 =N

8 × 7 =U

5 × 11 =T

12 × 4 =H

0/17 letters found

Clue 5

Division facts (1-12) — the last clue

Dividing the fish treats equally among the cat patrol leads to the next secret clue.

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

44 ÷ 11 = ?

81 ÷ 9 = ?

132 ÷ 12 = ?

64 ÷ 8 = ?

108 ÷ 9 = ?

7 ÷ 7 = ?

40 ÷ 4 = ?

12 ÷ 4 = ?

48 ÷ 8 = ?

77 ÷ 11 = ?

8 ÷ 4 = ?

Step 2 — cross out the sentence with each answer

1.The villain teleported straight into the cat vault, then distracted guards with a feather wand.

2.The villain mined through the obsidian bank, then brewed a sneaky catnip potion.

3.The villain sliced open the chest lock, then scooped up the diamond salmon bucket.

4.The villain zapped the redstone security system, then tangled the traps with a yarn bomb.

5.The villain sliced open the chest lock, then brewed a sneaky catnip potion.

6.The villain zapped the redstone security system, then chugged a fresh milk bucket.

7.The villain mined through the obsidian bank, then chugged a fresh milk bucket.

8.The villain bounced high over the fences, then distracted guards with a feather wand.

9.The villain teleported straight into the cat vault, then tangled the traps with a yarn bomb.

10.The villain sliced open the chest lock, then tangled the traps with a yarn bomb.

11.The villain sliced open the chest lock, then chugged a fresh milk bucket.

12.The villain mined through the obsidian bank, then scooped up the diamond salmon bucket.

Solve it

Name the culprit

Choose the one suspect left standing.

Answer Key — The Mystery of the Diamond Salmon

Culprit: Ziggy (Golden Sword · Catnip Potion · Left Pawed · Orange Tabby · Squeaky Mouse)

Clue 1 (Rounding): "THE VILLAIN DOES NOT USE A FEATHER WAND"
Round 1,313 to the nearest hundred = 1300 (T) · Round 4,618 to the nearest thousand = 5000 (U) · Round 51 to the nearest ten = 50 (L) · Round 6,831 to the nearest thousand = 7000 (R) · Round 293 to the nearest ten = 290 (F) · Round 905 to the nearest hundred = 900 (A) · Round 2,323 to the nearest hundred = 2300 (V) · Round 1,609 to the nearest thousand = 2000 (D) · Round 131 to the nearest ten = 130 (H) · Round 33 to the nearest ten = 30 (I) · Round 291 to the nearest hundred = 300 (S) · Round 489 to the nearest hundred = 500 (W) · Round 2,909 to the nearest hundred = 2900 (O) · Round 1,141 to the nearest hundred = 1100 (N) · Round 74 to the nearest ten = 70 (E)
Clue 2 (Addition): "THE VILLAIN USED THEIR LEFT PAW TO MINE"
3958 + 4432 = 8390 (T) · 3927 + 2338 = 6265 (F) · 3104 + 6463 = 9567 (A) · 3225 + 5257 = 8482 (M) · 2628 + 5488 = 8116 (W) · 1692 + 1530 = 3222 (I) · 4089 + 1964 = 6053 (U) · 1567 + 2892 = 4459 (D) · 3351 + 5158 = 8509 (P) · 1112 + 1450 = 2562 (E) · 1153 + 1327 = 2480 (L) · 1001 + 1772 = 2773 (H) · 1447 + 3239 = 4686 (V) · 3969 + 1763 = 5732 (R) · 4793 + 3063 = 7856 (N) · 3656 + 3882 = 7538 (S) · 4251 + 5294 = 9545 (O)
Clue 3 (Subtraction): "THE SUSPECT PANICKED AT A SQUEAKY MOUSE"
8045 - 1775 = 6270 (T) · 7401 - 2395 = 5006 (M) · 3600 - 2155 = 1445 (S) · 3887 - 426 = 3461 (A) · 11547 - 3688 = 7859 (P) · 4653 - 279 = 4374 (K) · 10643 - 2658 = 7985 (D) · 2811 - 1564 = 1247 (I) · 8678 - 3727 = 4951 (C) · 9455 - 4700 = 4755 (E) · 9871 - 4079 = 5792 (O) · 7066 - 2144 = 4922 (Y) · 13565 - 4859 = 8706 (N) · 2826 - 1817 = 1009 (U) · 3591 - 932 = 2659 (Q) · 5513 - 4361 = 1152 (H)
Clue 4 (Multiplication facts (1-12)): "BRIGHT ORANGE TABBY FUR WAS FOUND AT SCENE"
6 × 5 = 30 (B) · 10 × 4 = 40 (F) · 10 × 11 = 110 (R) · 11 × 1 = 11 (Y) · 11 × 6 = 66 (S) · 5 × 1 = 5 (A) · 2 × 2 = 4 (G) · 4 × 11 = 44 (O) · 12 × 9 = 108 (D) · 12 × 8 = 96 (C) · 1 × 7 = 7 (W) · 4 × 4 = 16 (E) · 2 × 3 = 6 (I) · 9 × 7 = 63 (N) · 8 × 7 = 56 (U) · 5 × 11 = 55 (T) · 12 × 4 = 48 (H)
Clue 5 (Division facts (1-12)): surviving statement (box 5) → Ziggy
44 ÷ 11 = 4 · 81 ÷ 9 = 9 · 132 ÷ 12 = 11 · 64 ÷ 8 = 8 · 108 ÷ 9 = 12 · 7 ÷ 7 = 1 · 40 ÷ 4 = 10 · 12 ÷ 4 = 3 · 48 ÷ 8 = 6 · 77 ÷ 11 = 7 · 8 ÷ 4 = 2

About this mystery

Grade level: Grade 4 math
Math topics: Rounding, Addition, Subtraction, Multiplication, Division
Reading level: grades 3-4
Theme: The Mystery of the Diamond Salmon — set in Crafty Paw Village
Format: Interactive online & printable worksheet with answer key
Solution: One unique, verified culprit among 21 suspects

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